* [PATCHv3 00/17] ARMv8.4 Secure EL2
@ 2020-11-23 8:01 Rémi Denis-Courmont
2020-11-23 8:02 ` [PATCH 01/17] target/arm: remove redundant tests remi.denis.courmont
` (17 more replies)
0 siblings, 18 replies; 26+ messages in thread
From: Rémi Denis-Courmont @ 2020-11-23 8:01 UTC (permalink / raw)
To: qemu-arm; +Cc: qemu-devel
The following changes since commit 8cc30eb1400fc01f2b139cdd3dc524f8b84dbe07:
Merge remote-tracking branch 'remotes/mcayland/tags/qemu-sparc-20201122' into staging (2020-11-22 15:02:52 +0000)
follow.
Changes since version 2:
- Don't set HPFAR.NS in AT instruction in NS state.
----------------------------------------------------------------
Rémi Denis-Courmont (17):
target/arm: remove redundant tests
target/arm: add arm_is_el2_enabled() helper
target/arm: use arm_is_el2_enabled() where applicable
target/arm: use arm_hcr_el2_eff() where applicable
target/arm: factor MDCR_EL2 common handling
target/arm: declare new AA64PFR0 bit-fields
target/arm: add 64-bit S-EL2 to EL exception table
target/arm: return the stage 2 index for stage 1
target/arm: add MMU stage 1 for Secure EL2
target/arm: add ARMv8.4-SEL2 system registers
target/arm: do S1_ptw_translate() before address space lookup
target/arm: secure stage 2 translation regime
target/arm: handle VMID change in secure state
target/arm: set HPFAR_EL2.NS on secure stage 2 faults
target/arm: add ARMv8.4-SEL2 extension
target/arm: enable Secure EL2 in max CPU
target/arm: refactor vae1_tlbmask()
target/arm/cpu-param.h | 2 +-
target/arm/cpu.c | 10 +-
target/arm/cpu.h | 93 ++++++++--
target/arm/cpu64.c | 1 +
target/arm/helper-a64.c | 8 +-
target/arm/helper.c | 423 ++++++++++++++++++++++++++++++---------------
target/arm/internals.h | 56 +++++-
target/arm/op_helper.c | 4 +-
target/arm/tlb_helper.c | 3 +
target/arm/translate-a64.c | 4 +
target/arm/translate.c | 6 +-
target/arm/translate.h | 1 +
12 files changed, 431 insertions(+), 180 deletions(-)
--
雷米‧德尼-库尔蒙
^ permalink raw reply [flat|nested] 26+ messages in thread
* [PATCH 01/17] target/arm: remove redundant tests
2020-11-23 8:01 [PATCHv3 00/17] ARMv8.4 Secure EL2 Rémi Denis-Courmont
@ 2020-11-23 8:02 ` remi.denis.courmont
2020-11-23 8:02 ` [PATCH 02/17] target/arm: add arm_is_el2_enabled() helper remi.denis.courmont
` (16 subsequent siblings)
17 siblings, 0 replies; 26+ messages in thread
From: remi.denis.courmont @ 2020-11-23 8:02 UTC (permalink / raw)
To: qemu-arm; +Cc: qemu-devel
From: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
In this context, the HCR value is the effective value, and thus is
zero in secure mode. The tests for HCR.{F,I}MO are sufficient.
Signed-off-by: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
target/arm/cpu.c | 8 ++++----
target/arm/helper.c | 10 ++++------
2 files changed, 8 insertions(+), 10 deletions(-)
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index 07492e9f9a..48b34080ce 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -447,14 +447,14 @@ static inline bool arm_excp_unmasked(CPUState *cs, unsigned int excp_idx,
break;
case EXCP_VFIQ:
- if (secure || !(hcr_el2 & HCR_FMO) || (hcr_el2 & HCR_TGE)) {
- /* VFIQs are only taken when hypervized and non-secure. */
+ if (!(hcr_el2 & HCR_FMO) || (hcr_el2 & HCR_TGE)) {
+ /* VFIQs are only taken when hypervized. */
return false;
}
return !(env->daif & PSTATE_F);
case EXCP_VIRQ:
- if (secure || !(hcr_el2 & HCR_IMO) || (hcr_el2 & HCR_TGE)) {
- /* VIRQs are only taken when hypervized and non-secure. */
+ if (!(hcr_el2 & HCR_IMO) || (hcr_el2 & HCR_TGE)) {
+ /* VIRQs are only taken when hypervized. */
return false;
}
return !(env->daif & PSTATE_I);
diff --git a/target/arm/helper.c b/target/arm/helper.c
index 11b0803df7..346dc91a91 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -2083,13 +2083,11 @@ static void csselr_write(CPUARMState *env, const ARMCPRegInfo *ri,
static uint64_t isr_read(CPUARMState *env, const ARMCPRegInfo *ri)
{
CPUState *cs = env_cpu(env);
- uint64_t hcr_el2 = arm_hcr_el2_eff(env);
+ bool el1 = arm_current_el(env) == 1;
+ uint64_t hcr_el2 = el1 ? arm_hcr_el2_eff(env) : 0;
uint64_t ret = 0;
- bool allow_virt = (arm_current_el(env) == 1 &&
- (!arm_is_secure_below_el3(env) ||
- (env->cp15.scr_el3 & SCR_EEL2)));
- if (allow_virt && (hcr_el2 & HCR_IMO)) {
+ if (hcr_el2 & HCR_IMO) {
if (cs->interrupt_request & CPU_INTERRUPT_VIRQ) {
ret |= CPSR_I;
}
@@ -2099,7 +2097,7 @@ static uint64_t isr_read(CPUARMState *env, const ARMCPRegInfo *ri)
}
}
- if (allow_virt && (hcr_el2 & HCR_FMO)) {
+ if (hcr_el2 & HCR_FMO) {
if (cs->interrupt_request & CPU_INTERRUPT_VFIQ) {
ret |= CPSR_F;
}
--
2.29.2
^ permalink raw reply related [flat|nested] 26+ messages in thread
* [PATCH 02/17] target/arm: add arm_is_el2_enabled() helper
2020-11-23 8:01 [PATCHv3 00/17] ARMv8.4 Secure EL2 Rémi Denis-Courmont
2020-11-23 8:02 ` [PATCH 01/17] target/arm: remove redundant tests remi.denis.courmont
@ 2020-11-23 8:02 ` remi.denis.courmont
2020-11-23 8:02 ` [PATCH 03/17] target/arm: use arm_is_el2_enabled() where applicable remi.denis.courmont
` (15 subsequent siblings)
17 siblings, 0 replies; 26+ messages in thread
From: remi.denis.courmont @ 2020-11-23 8:02 UTC (permalink / raw)
To: qemu-arm; +Cc: qemu-devel
From: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
This checks if EL2 is enabled (meaning EL2 registers take effects) in
the current security context.
Signed-off-by: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
target/arm/cpu.h | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index e5514c8286..30b5af5cde 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -2040,6 +2040,18 @@ static inline bool arm_is_secure(CPUARMState *env)
return arm_is_secure_below_el3(env);
}
+/*
+ * Return true if the current security state has AArch64 EL2 or AArch32 Hyp.
+ * This corresponds to the pseudocode EL2Enabled()
+ */
+static inline bool arm_is_el2_enabled(CPUARMState *env)
+{
+ if (arm_feature(env, ARM_FEATURE_EL2)) {
+ return !arm_is_secure_below_el3(env);
+ }
+ return false;
+}
+
#else
static inline bool arm_is_secure_below_el3(CPUARMState *env)
{
@@ -2050,6 +2062,11 @@ static inline bool arm_is_secure(CPUARMState *env)
{
return false;
}
+
+static inline bool arm_is_el2_enabled(CPUARMState *env)
+{
+ return false;
+}
#endif
/**
--
2.29.2
^ permalink raw reply related [flat|nested] 26+ messages in thread
* [PATCH 03/17] target/arm: use arm_is_el2_enabled() where applicable
2020-11-23 8:01 [PATCHv3 00/17] ARMv8.4 Secure EL2 Rémi Denis-Courmont
2020-11-23 8:02 ` [PATCH 01/17] target/arm: remove redundant tests remi.denis.courmont
2020-11-23 8:02 ` [PATCH 02/17] target/arm: add arm_is_el2_enabled() helper remi.denis.courmont
@ 2020-11-23 8:02 ` remi.denis.courmont
2020-11-23 8:02 ` [PATCH 04/17] target/arm: use arm_hcr_el2_eff() " remi.denis.courmont
` (14 subsequent siblings)
17 siblings, 0 replies; 26+ messages in thread
From: remi.denis.courmont @ 2020-11-23 8:02 UTC (permalink / raw)
To: qemu-arm; +Cc: qemu-devel
From: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
Do not assume that EL2 is available in non-secure context.
That equivalence is broken by ARMv8.4-SEL2.
Signed-off-by: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
target/arm/cpu.h | 4 ++--
target/arm/helper-a64.c | 8 +-------
target/arm/helper.c | 33 +++++++++++++--------------------
3 files changed, 16 insertions(+), 29 deletions(-)
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index 30b5af5cde..9617e39004 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -2102,7 +2102,7 @@ static inline bool arm_el_is_aa64(CPUARMState *env, int el)
return aa64;
}
- if (arm_feature(env, ARM_FEATURE_EL2) && !arm_is_secure_below_el3(env)) {
+ if (arm_is_el2_enabled(env)) {
aa64 = aa64 && (env->cp15.hcr_el2 & HCR_RW);
}
@@ -3046,7 +3046,7 @@ static inline int arm_debug_target_el(CPUARMState *env)
bool secure = arm_is_secure(env);
bool route_to_el2 = false;
- if (arm_feature(env, ARM_FEATURE_EL2) && !secure) {
+ if (arm_is_el2_enabled(env)) {
route_to_el2 = env->cp15.hcr_el2 & HCR_TGE ||
env->cp15.mdcr_el2 & MDCR_TDE;
}
diff --git a/target/arm/helper-a64.c b/target/arm/helper-a64.c
index 30b2ad119f..c426c23d2c 100644
--- a/target/arm/helper-a64.c
+++ b/target/arm/helper-a64.c
@@ -972,8 +972,7 @@ void HELPER(exception_return)(CPUARMState *env, uint64_t new_pc)
if (new_el == -1) {
goto illegal_return;
}
- if (new_el > cur_el
- || (new_el == 2 && !arm_feature(env, ARM_FEATURE_EL2))) {
+ if (new_el > cur_el || (new_el == 2 && !arm_is_el2_enabled(env))) {
/* Disallow return to an EL which is unimplemented or higher
* than the current one.
*/
@@ -985,11 +984,6 @@ void HELPER(exception_return)(CPUARMState *env, uint64_t new_pc)
goto illegal_return;
}
- if (new_el == 2 && arm_is_secure_below_el3(env)) {
- /* Return to the non-existent secure-EL2 */
- goto illegal_return;
- }
-
if (new_el == 1 && (arm_hcr_el2_eff(env) & HCR_TGE)) {
goto illegal_return;
}
diff --git a/target/arm/helper.c b/target/arm/helper.c
index 346dc91a91..5a2c7103b1 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -1048,8 +1048,8 @@ static CPAccessResult cpacr_access(CPUARMState *env, const ARMCPRegInfo *ri,
{
if (arm_feature(env, ARM_FEATURE_V8)) {
/* Check if CPACR accesses are to be trapped to EL2 */
- if (arm_current_el(env) == 1 &&
- (env->cp15.cptr_el[2] & CPTR_TCPAC) && !arm_is_secure(env)) {
+ if (arm_current_el(env) == 1 && arm_is_el2_enabled(env) &&
+ (env->cp15.cptr_el[2] & CPTR_TCPAC)) {
return CP_ACCESS_TRAP_EL2;
/* Check if CPACR accesses are to be trapped to EL3 */
} else if (arm_current_el(env) < 3 &&
@@ -2519,7 +2519,7 @@ static CPAccessResult gt_counter_access(CPUARMState *env, int timeridx,
bool isread)
{
unsigned int cur_el = arm_current_el(env);
- bool secure = arm_is_secure(env);
+ bool has_el2 = arm_is_el2_enabled(env);
uint64_t hcr = arm_hcr_el2_eff(env);
switch (cur_el) {
@@ -2543,8 +2543,7 @@ static CPAccessResult gt_counter_access(CPUARMState *env, int timeridx,
}
} else {
/* If HCR_EL2.<E2H> == 0: check CNTHCTL_EL2.EL1PCEN. */
- if (arm_feature(env, ARM_FEATURE_EL2) &&
- timeridx == GTIMER_PHYS && !secure &&
+ if (has_el2 && timeridx == GTIMER_PHYS &&
!extract32(env->cp15.cnthctl_el2, 1, 1)) {
return CP_ACCESS_TRAP_EL2;
}
@@ -2553,8 +2552,7 @@ static CPAccessResult gt_counter_access(CPUARMState *env, int timeridx,
case 1:
/* Check CNTHCTL_EL2.EL1PCTEN, which changes location based on E2H. */
- if (arm_feature(env, ARM_FEATURE_EL2) &&
- timeridx == GTIMER_PHYS && !secure &&
+ if (has_el2 && timeridx == GTIMER_PHYS &&
(hcr & HCR_E2H
? !extract32(env->cp15.cnthctl_el2, 10, 1)
: !extract32(env->cp15.cnthctl_el2, 0, 1))) {
@@ -2569,7 +2567,7 @@ static CPAccessResult gt_timer_access(CPUARMState *env, int timeridx,
bool isread)
{
unsigned int cur_el = arm_current_el(env);
- bool secure = arm_is_secure(env);
+ bool has_el2 = arm_is_el2_enabled(env);
uint64_t hcr = arm_hcr_el2_eff(env);
switch (cur_el) {
@@ -2590,8 +2588,7 @@ static CPAccessResult gt_timer_access(CPUARMState *env, int timeridx,
/* fall through */
case 1:
- if (arm_feature(env, ARM_FEATURE_EL2) &&
- timeridx == GTIMER_PHYS && !secure) {
+ if (has_el2 && timeridx == GTIMER_PHYS) {
if (hcr & HCR_E2H) {
/* If HCR_EL2.<E2H,TGE> == '10': check CNTHCTL_EL2.EL1PTEN. */
if (!extract32(env->cp15.cnthctl_el2, 11, 1)) {
@@ -4247,11 +4244,9 @@ static const ARMCPRegInfo strongarm_cp_reginfo[] = {
static uint64_t midr_read(CPUARMState *env, const ARMCPRegInfo *ri)
{
- ARMCPU *cpu = env_archcpu(env);
unsigned int cur_el = arm_current_el(env);
- bool secure = arm_is_secure(env);
- if (arm_feature(&cpu->env, ARM_FEATURE_EL2) && !secure && cur_el == 1) {
+ if (arm_is_el2_enabled(env) && cur_el == 1) {
return env->cp15.vpidr_el2;
}
return raw_read(env, ri);
@@ -4278,9 +4273,8 @@ static uint64_t mpidr_read_val(CPUARMState *env)
static uint64_t mpidr_read(CPUARMState *env, const ARMCPRegInfo *ri)
{
unsigned int cur_el = arm_current_el(env);
- bool secure = arm_is_secure(env);
- if (arm_feature(env, ARM_FEATURE_EL2) && !secure && cur_el == 1) {
+ if (arm_is_el2_enabled(env) && cur_el == 1) {
return env->cp15.vmpidr_el2;
}
return mpidr_read_val(env);
@@ -5347,7 +5341,7 @@ uint64_t arm_hcr_el2_eff(CPUARMState *env)
{
uint64_t ret = env->cp15.hcr_el2;
- if (arm_is_secure_below_el3(env)) {
+ if (!arm_is_el2_enabled(env)) {
/*
* "This register has no effect if EL2 is not enabled in the
* current Security state". This is ARMv8.4-SecEL2 speak for
@@ -6144,7 +6138,7 @@ int sve_exception_el(CPUARMState *env, int el)
/* CPTR_EL2. Since TZ and TFP are positive,
* they will be zero when EL2 is not present.
*/
- if (el <= 2 && !arm_is_secure_below_el3(env)) {
+ if (el <= 2 && arm_is_el2_enabled(env)) {
if (env->cp15.cptr_el[2] & CPTR_TZ) {
return 2;
}
@@ -8723,8 +8717,7 @@ static int bad_mode_switch(CPUARMState *env, int mode, CPSRWriteType write_type)
}
return 0;
case ARM_CPU_MODE_HYP:
- return !arm_feature(env, ARM_FEATURE_EL2)
- || arm_current_el(env) < 2 || arm_is_secure_below_el3(env);
+ return !arm_is_el2_enabled(env) || arm_current_el(env) < 2;
case ARM_CPU_MODE_MON:
return arm_current_el(env) < 3;
default:
@@ -12634,7 +12627,7 @@ int fp_exception_el(CPUARMState *env, int cur_el)
/* CPTR_EL2 : present in v7VE or v8 */
if (cur_el <= 2 && extract32(env->cp15.cptr_el[2], 10, 1)
- && !arm_is_secure_below_el3(env)) {
+ && arm_is_el2_enabled(env)) {
/* Trap FP ops at EL2, NS-EL1 or NS-EL0 to EL2 */
return 2;
}
--
2.29.2
^ permalink raw reply related [flat|nested] 26+ messages in thread
* [PATCH 04/17] target/arm: use arm_hcr_el2_eff() where applicable
2020-11-23 8:01 [PATCHv3 00/17] ARMv8.4 Secure EL2 Rémi Denis-Courmont
` (2 preceding siblings ...)
2020-11-23 8:02 ` [PATCH 03/17] target/arm: use arm_is_el2_enabled() where applicable remi.denis.courmont
@ 2020-11-23 8:02 ` remi.denis.courmont
2020-11-23 8:02 ` [PATCH 05/17] target/arm: factor MDCR_EL2 common handling remi.denis.courmont
` (13 subsequent siblings)
17 siblings, 0 replies; 26+ messages in thread
From: remi.denis.courmont @ 2020-11-23 8:02 UTC (permalink / raw)
To: qemu-arm; +Cc: qemu-devel
From: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
This will simplify accessing HCR conditionally in secure state.
Signed-off-by: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
target/arm/helper.c | 31 ++++++++++++++++++-------------
1 file changed, 18 insertions(+), 13 deletions(-)
diff --git a/target/arm/helper.c b/target/arm/helper.c
index 5a2c7103b1..b972c9064d 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -4432,16 +4432,16 @@ static CPAccessResult aa64_cacheop_pou_access(CPUARMState *env,
static int vae1_tlbmask(CPUARMState *env)
{
- /* Since we exclude secure first, we may read HCR_EL2 directly. */
- if (arm_is_secure_below_el3(env)) {
- return ARMMMUIdxBit_SE10_1 |
- ARMMMUIdxBit_SE10_1_PAN |
- ARMMMUIdxBit_SE10_0;
- } else if ((env->cp15.hcr_el2 & (HCR_E2H | HCR_TGE))
- == (HCR_E2H | HCR_TGE)) {
+ uint64_t hcr = arm_hcr_el2_eff(env);
+
+ if ((hcr & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)) {
return ARMMMUIdxBit_E20_2 |
ARMMMUIdxBit_E20_2_PAN |
ARMMMUIdxBit_E20_0;
+ } else if (arm_is_secure_below_el3(env)) {
+ return ARMMMUIdxBit_SE10_1 |
+ ARMMMUIdxBit_SE10_1_PAN |
+ ARMMMUIdxBit_SE10_0;
} else {
return ARMMMUIdxBit_E10_1 |
ARMMMUIdxBit_E10_1_PAN |
@@ -9968,6 +9968,8 @@ static inline uint64_t regime_sctlr(CPUARMState *env, ARMMMUIdx mmu_idx)
static inline bool regime_translation_disabled(CPUARMState *env,
ARMMMUIdx mmu_idx)
{
+ uint64_t hcr_el2;
+
if (arm_feature(env, ARM_FEATURE_M)) {
switch (env->v7m.mpu_ctrl[regime_is_secure(env, mmu_idx)] &
(R_V7M_MPU_CTRL_ENABLE_MASK | R_V7M_MPU_CTRL_HFNMIENA_MASK)) {
@@ -9986,19 +9988,21 @@ static inline bool regime_translation_disabled(CPUARMState *env,
}
}
+ hcr_el2 = arm_hcr_el2_eff(env);
+
if (mmu_idx == ARMMMUIdx_Stage2) {
/* HCR.DC means HCR.VM behaves as 1 */
- return (env->cp15.hcr_el2 & (HCR_DC | HCR_VM)) == 0;
+ return (hcr_el2 & (HCR_DC | HCR_VM)) == 0;
}
- if (env->cp15.hcr_el2 & HCR_TGE) {
+ if (hcr_el2 & HCR_TGE) {
/* TGE means that NS EL0/1 act as if SCTLR_EL1.M is zero */
if (!regime_is_secure(env, mmu_idx) && regime_el(env, mmu_idx) == 1) {
return true;
}
}
- if ((env->cp15.hcr_el2 & HCR_DC) && arm_mmu_idx_is_stage1_of_2(mmu_idx)) {
+ if ((hcr_el2 & HCR_DC) && arm_mmu_idx_is_stage1_of_2(mmu_idx)) {
/* HCR.DC means SCTLR_EL1.M behaves as 0 */
return true;
}
@@ -10349,7 +10353,8 @@ static hwaddr S1_ptw_translate(CPUARMState *env, ARMMMUIdx mmu_idx,
fi->s1ptw = true;
return ~0;
}
- if ((env->cp15.hcr_el2 & HCR_PTW) && (cacheattrs.attrs & 0xf0) == 0) {
+ if ((arm_hcr_el2_eff(env) & HCR_PTW) &&
+ (cacheattrs.attrs & 0xf0) == 0) {
/*
* PTW set and S1 walk touched S2 Device memory:
* generate Permission fault.
@@ -10782,7 +10787,7 @@ static uint8_t convert_stage2_attrs(CPUARMState *env, uint8_t s2attrs)
uint8_t hihint = 0, lohint = 0;
if (hiattr != 0) { /* normal memory */
- if ((env->cp15.hcr_el2 & HCR_CD) != 0) { /* cache disabled */
+ if (arm_hcr_el2_eff(env) & HCR_CD) { /* cache disabled */
hiattr = loattr = 1; /* non-cacheable */
} else {
if (hiattr != 1) { /* Write-through or write-back */
@@ -12099,7 +12104,7 @@ bool get_phys_addr(CPUARMState *env, target_ulong address,
}
/* Combine the S1 and S2 cache attributes. */
- if (env->cp15.hcr_el2 & HCR_DC) {
+ if (arm_hcr_el2_eff(env) & HCR_DC) {
/*
* HCR.DC forces the first stage attributes to
* Normal Non-Shareable,
--
2.29.2
^ permalink raw reply related [flat|nested] 26+ messages in thread
* [PATCH 05/17] target/arm: factor MDCR_EL2 common handling
2020-11-23 8:01 [PATCHv3 00/17] ARMv8.4 Secure EL2 Rémi Denis-Courmont
` (3 preceding siblings ...)
2020-11-23 8:02 ` [PATCH 04/17] target/arm: use arm_hcr_el2_eff() " remi.denis.courmont
@ 2020-11-23 8:02 ` remi.denis.courmont
2020-11-23 8:02 ` [PATCH 06/17] target/arm: declare new AA64PFR0 bit-fields remi.denis.courmont
` (12 subsequent siblings)
17 siblings, 0 replies; 26+ messages in thread
From: remi.denis.courmont @ 2020-11-23 8:02 UTC (permalink / raw)
To: qemu-arm; +Cc: qemu-devel
From: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
This adds a common helper to compute the effective value of MDCR_EL2.
That is the actual value if EL2 is enabled in the current security
context, or 0 elsewise.
Signed-off-by: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
target/arm/helper.c | 38 ++++++++++++++++++++++----------------
1 file changed, 22 insertions(+), 16 deletions(-)
diff --git a/target/arm/helper.c b/target/arm/helper.c
index b972c9064d..e55059585b 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -538,6 +538,11 @@ static CPAccessResult access_trap_aa32s_el1(CPUARMState *env,
return CP_ACCESS_TRAP_UNCATEGORIZED;
}
+static uint64_t arm_mdcr_el2_eff(CPUARMState *env)
+{
+ return arm_is_el2_enabled(env) ? env->cp15.mdcr_el2 : 0;
+}
+
/* Check for traps to "powerdown debug" registers, which are controlled
* by MDCR.TDOSA
*/
@@ -545,11 +550,11 @@ static CPAccessResult access_tdosa(CPUARMState *env, const ARMCPRegInfo *ri,
bool isread)
{
int el = arm_current_el(env);
- bool mdcr_el2_tdosa = (env->cp15.mdcr_el2 & MDCR_TDOSA) ||
- (env->cp15.mdcr_el2 & MDCR_TDE) ||
+ uint64_t mdcr_el2 = arm_mdcr_el2_eff(env);
+ bool mdcr_el2_tdosa = (mdcr_el2 & MDCR_TDOSA) || (mdcr_el2 & MDCR_TDE) ||
(arm_hcr_el2_eff(env) & HCR_TGE);
- if (el < 2 && mdcr_el2_tdosa && !arm_is_secure_below_el3(env)) {
+ if (el < 2 && mdcr_el2_tdosa) {
return CP_ACCESS_TRAP_EL2;
}
if (el < 3 && (env->cp15.mdcr_el3 & MDCR_TDOSA)) {
@@ -565,11 +570,11 @@ static CPAccessResult access_tdra(CPUARMState *env, const ARMCPRegInfo *ri,
bool isread)
{
int el = arm_current_el(env);
- bool mdcr_el2_tdra = (env->cp15.mdcr_el2 & MDCR_TDRA) ||
- (env->cp15.mdcr_el2 & MDCR_TDE) ||
+ uint64_t mdcr_el2 = arm_mdcr_el2_eff(env);
+ bool mdcr_el2_tdra = (mdcr_el2 & MDCR_TDRA) || (mdcr_el2 & MDCR_TDE) ||
(arm_hcr_el2_eff(env) & HCR_TGE);
- if (el < 2 && mdcr_el2_tdra && !arm_is_secure_below_el3(env)) {
+ if (el < 2 && mdcr_el2_tdra) {
return CP_ACCESS_TRAP_EL2;
}
if (el < 3 && (env->cp15.mdcr_el3 & MDCR_TDA)) {
@@ -585,11 +590,11 @@ static CPAccessResult access_tda(CPUARMState *env, const ARMCPRegInfo *ri,
bool isread)
{
int el = arm_current_el(env);
- bool mdcr_el2_tda = (env->cp15.mdcr_el2 & MDCR_TDA) ||
- (env->cp15.mdcr_el2 & MDCR_TDE) ||
+ uint64_t mdcr_el2 = arm_mdcr_el2_eff(env);
+ bool mdcr_el2_tda = (mdcr_el2 & MDCR_TDA) || (mdcr_el2 & MDCR_TDE) ||
(arm_hcr_el2_eff(env) & HCR_TGE);
- if (el < 2 && mdcr_el2_tda && !arm_is_secure_below_el3(env)) {
+ if (el < 2 && mdcr_el2_tda) {
return CP_ACCESS_TRAP_EL2;
}
if (el < 3 && (env->cp15.mdcr_el3 & MDCR_TDA)) {
@@ -605,9 +610,9 @@ static CPAccessResult access_tpm(CPUARMState *env, const ARMCPRegInfo *ri,
bool isread)
{
int el = arm_current_el(env);
+ uint64_t mdcr_el2 = arm_mdcr_el2_eff(env);
- if (el < 2 && (env->cp15.mdcr_el2 & MDCR_TPM)
- && !arm_is_secure_below_el3(env)) {
+ if (el < 2 && (mdcr_el2 & MDCR_TPM)) {
return CP_ACCESS_TRAP_EL2;
}
if (el < 3 && (env->cp15.mdcr_el3 & MDCR_TPM)) {
@@ -1347,12 +1352,12 @@ static CPAccessResult pmreg_access(CPUARMState *env, const ARMCPRegInfo *ri,
* trapping to EL2 or EL3 for other accesses.
*/
int el = arm_current_el(env);
+ uint64_t mdcr_el2 = arm_mdcr_el2_eff(env);
if (el == 0 && !(env->cp15.c9_pmuserenr & 1)) {
return CP_ACCESS_TRAP;
}
- if (el < 2 && (env->cp15.mdcr_el2 & MDCR_TPM)
- && !arm_is_secure_below_el3(env)) {
+ if (el < 2 && (mdcr_el2 & MDCR_TPM)) {
return CP_ACCESS_TRAP_EL2;
}
if (el < 3 && (env->cp15.mdcr_el3 & MDCR_TPM)) {
@@ -1431,7 +1436,8 @@ static bool pmu_counter_enabled(CPUARMState *env, uint8_t counter)
bool enabled, prohibited, filtered;
bool secure = arm_is_secure(env);
int el = arm_current_el(env);
- uint8_t hpmn = env->cp15.mdcr_el2 & MDCR_HPMN;
+ uint64_t mdcr_el2 = arm_mdcr_el2_eff(env);
+ uint8_t hpmn = mdcr_el2 & MDCR_HPMN;
if (!arm_feature(env, ARM_FEATURE_PMU)) {
return false;
@@ -1441,13 +1447,13 @@ static bool pmu_counter_enabled(CPUARMState *env, uint8_t counter)
(counter < hpmn || counter == 31)) {
e = env->cp15.c9_pmcr & PMCRE;
} else {
- e = env->cp15.mdcr_el2 & MDCR_HPME;
+ e = mdcr_el2 & MDCR_HPME;
}
enabled = e && (env->cp15.c9_pmcnten & (1 << counter));
if (!secure) {
if (el == 2 && (counter < hpmn || counter == 31)) {
- prohibited = env->cp15.mdcr_el2 & MDCR_HPMD;
+ prohibited = mdcr_el2 & MDCR_HPMD;
} else {
prohibited = false;
}
--
2.29.2
^ permalink raw reply related [flat|nested] 26+ messages in thread
* [PATCH 06/17] target/arm: declare new AA64PFR0 bit-fields
2020-11-23 8:01 [PATCHv3 00/17] ARMv8.4 Secure EL2 Rémi Denis-Courmont
` (4 preceding siblings ...)
2020-11-23 8:02 ` [PATCH 05/17] target/arm: factor MDCR_EL2 common handling remi.denis.courmont
@ 2020-11-23 8:02 ` remi.denis.courmont
2020-11-23 8:02 ` [PATCH 07/17] target/arm: add 64-bit S-EL2 to EL exception table remi.denis.courmont
` (11 subsequent siblings)
17 siblings, 0 replies; 26+ messages in thread
From: remi.denis.courmont @ 2020-11-23 8:02 UTC (permalink / raw)
To: qemu-arm; +Cc: qemu-devel
From: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
Signed-off-by: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
target/arm/cpu.h | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index 9617e39004..1166bd8731 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -1849,6 +1849,12 @@ FIELD(ID_AA64PFR0, ADVSIMD, 20, 4)
FIELD(ID_AA64PFR0, GIC, 24, 4)
FIELD(ID_AA64PFR0, RAS, 28, 4)
FIELD(ID_AA64PFR0, SVE, 32, 4)
+FIELD(ID_AA64PFR0, SEL2, 36, 4)
+FIELD(ID_AA64PFR0, MPAM, 40, 4)
+FIELD(ID_AA64PFR0, AMU, 44, 4)
+FIELD(ID_AA64PFR0, DIT, 48, 4)
+FIELD(ID_AA64PFR0, CSV2, 56, 4)
+FIELD(ID_AA64PFR0, CSV3, 60, 4)
FIELD(ID_AA64PFR1, BT, 0, 4)
FIELD(ID_AA64PFR1, SBSS, 4, 4)
@@ -3882,6 +3888,11 @@ static inline bool isar_feature_aa64_sve(const ARMISARegisters *id)
return FIELD_EX64(id->id_aa64pfr0, ID_AA64PFR0, SVE) != 0;
}
+static inline bool isar_feature_aa64_sel2(const ARMISARegisters *id)
+{
+ return FIELD_EX64(id->id_aa64pfr0, ID_AA64PFR0, SEL2) != 0;
+}
+
static inline bool isar_feature_aa64_vh(const ARMISARegisters *id)
{
return FIELD_EX64(id->id_aa64mmfr1, ID_AA64MMFR1, VH) != 0;
--
2.29.2
^ permalink raw reply related [flat|nested] 26+ messages in thread
* [PATCH 07/17] target/arm: add 64-bit S-EL2 to EL exception table
2020-11-23 8:01 [PATCHv3 00/17] ARMv8.4 Secure EL2 Rémi Denis-Courmont
` (5 preceding siblings ...)
2020-11-23 8:02 ` [PATCH 06/17] target/arm: declare new AA64PFR0 bit-fields remi.denis.courmont
@ 2020-11-23 8:02 ` remi.denis.courmont
2020-11-23 8:02 ` [PATCH 08/17] target/arm: return the stage 2 index for stage 1 remi.denis.courmont
` (10 subsequent siblings)
17 siblings, 0 replies; 26+ messages in thread
From: remi.denis.courmont @ 2020-11-23 8:02 UTC (permalink / raw)
To: qemu-arm; +Cc: qemu-devel
From: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
With the ARMv8.4-SEL2 extension, EL2 is a legal exception level in
secure mode, though it can only be AArch64.
This patch adds the target EL for exceptions from 64-bit S-EL2.
It also fixes the target EL to EL2 when HCR.{A,F,I}MO are set in secure
mode. Those values were never used in practice as the effective value of
HCR was always 0 in secure mode.
Signed-off-by: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
---
target/arm/helper.c | 10 +++++-----
target/arm/op_helper.c | 4 ++--
2 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/target/arm/helper.c b/target/arm/helper.c
index e55059585b..a69fde826b 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -9005,13 +9005,13 @@ static const int8_t target_el_table[2][2][2][2][2][4] = {
{{/* 0 1 1 0 */{ 3, 3, 3, -1 },{ 3, -1, -1, 3 },},
{/* 0 1 1 1 */{ 3, 3, 3, -1 },{ 3, -1, -1, 3 },},},},},
{{{{/* 1 0 0 0 */{ 1, 1, 2, -1 },{ 1, 1, -1, 1 },},
- {/* 1 0 0 1 */{ 2, 2, 2, -1 },{ 1, 1, -1, 1 },},},
- {{/* 1 0 1 0 */{ 1, 1, 1, -1 },{ 1, 1, -1, 1 },},
- {/* 1 0 1 1 */{ 2, 2, 2, -1 },{ 1, 1, -1, 1 },},},},
+ {/* 1 0 0 1 */{ 2, 2, 2, -1 },{ 2, 2, -1, 1 },},},
+ {{/* 1 0 1 0 */{ 1, 1, 1, -1 },{ 1, 1, 1, 1 },},
+ {/* 1 0 1 1 */{ 2, 2, 2, -1 },{ 2, 2, 2, 1 },},},},
{{{/* 1 1 0 0 */{ 3, 3, 3, -1 },{ 3, 3, -1, 3 },},
{/* 1 1 0 1 */{ 3, 3, 3, -1 },{ 3, 3, -1, 3 },},},
- {{/* 1 1 1 0 */{ 3, 3, 3, -1 },{ 3, 3, -1, 3 },},
- {/* 1 1 1 1 */{ 3, 3, 3, -1 },{ 3, 3, -1, 3 },},},},},
+ {{/* 1 1 1 0 */{ 3, 3, 3, -1 },{ 3, 3, 3, 3 },},
+ {/* 1 1 1 1 */{ 3, 3, 3, -1 },{ 3, 3, 3, 3 },},},},},
};
/*
diff --git a/target/arm/op_helper.c b/target/arm/op_helper.c
index ff91fe6121..5e0f123043 100644
--- a/target/arm/op_helper.c
+++ b/target/arm/op_helper.c
@@ -652,10 +652,10 @@ void HELPER(access_check_cp_reg)(CPUARMState *env, void *rip, uint32_t syndrome,
target_el = exception_target_el(env);
break;
case CP_ACCESS_TRAP_EL2:
- /* Requesting a trap to EL2 when we're in EL3 or S-EL0/1 is
+ /* Requesting a trap to EL2 when we're in EL3 is
* a bug in the access function.
*/
- assert(!arm_is_secure(env) && arm_current_el(env) != 3);
+ assert(arm_current_el(env) != 3);
target_el = 2;
break;
case CP_ACCESS_TRAP_EL3:
--
2.29.2
^ permalink raw reply related [flat|nested] 26+ messages in thread
* [PATCH 08/17] target/arm: return the stage 2 index for stage 1
2020-11-23 8:01 [PATCHv3 00/17] ARMv8.4 Secure EL2 Rémi Denis-Courmont
` (6 preceding siblings ...)
2020-11-23 8:02 ` [PATCH 07/17] target/arm: add 64-bit S-EL2 to EL exception table remi.denis.courmont
@ 2020-11-23 8:02 ` remi.denis.courmont
2020-11-23 8:02 ` [PATCH 09/17] target/arm: add MMU stage 1 for Secure EL2 remi.denis.courmont
` (9 subsequent siblings)
17 siblings, 0 replies; 26+ messages in thread
From: remi.denis.courmont @ 2020-11-23 8:02 UTC (permalink / raw)
To: qemu-arm; +Cc: qemu-devel
From: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
This makes arm_mmu_idx_is_stage1_of_2() optionally return the stage 2
MMU index. With Secure EL2, there are more than one stage 2 regimes, so
we can no longer hard-code a constant index for it.
Signed-off-by: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
target/arm/helper.c | 13 +++++++------
target/arm/internals.h | 16 +++++++++++-----
2 files changed, 18 insertions(+), 11 deletions(-)
diff --git a/target/arm/helper.c b/target/arm/helper.c
index a69fde826b..f52d77f5a5 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -3424,7 +3424,7 @@ static uint64_t do_ats_write(CPUARMState *env, uint64_t value,
bool take_exc = false;
if (fi.s1ptw && current_el == 1 && !arm_is_secure(env)
- && arm_mmu_idx_is_stage1_of_2(mmu_idx)) {
+ && arm_mmu_idx_is_stage1_of_2(mmu_idx, NULL)) {
/*
* Synchronous stage 2 fault on an access made as part of the
* translation table walk for AT S1E0* or AT S1E1* insn
@@ -10008,7 +10008,7 @@ static inline bool regime_translation_disabled(CPUARMState *env,
}
}
- if ((hcr_el2 & HCR_DC) && arm_mmu_idx_is_stage1_of_2(mmu_idx)) {
+ if ((hcr_el2 & HCR_DC) && arm_mmu_idx_is_stage1_of_2(mmu_idx, NULL)) {
/* HCR.DC means SCTLR_EL1.M behaves as 0 */
return true;
}
@@ -10340,16 +10340,17 @@ static hwaddr S1_ptw_translate(CPUARMState *env, ARMMMUIdx mmu_idx,
hwaddr addr, MemTxAttrs txattrs,
ARMMMUFaultInfo *fi)
{
- if (arm_mmu_idx_is_stage1_of_2(mmu_idx) &&
- !regime_translation_disabled(env, ARMMMUIdx_Stage2)) {
+ ARMMMUIdx s2_mmu_idx;
+
+ if (arm_mmu_idx_is_stage1_of_2(mmu_idx, &s2_mmu_idx) &&
+ !regime_translation_disabled(env, s2_mmu_idx)) {
target_ulong s2size;
hwaddr s2pa;
int s2prot;
int ret;
ARMCacheAttrs cacheattrs = {};
- ret = get_phys_addr_lpae(env, addr, MMU_DATA_LOAD, ARMMMUIdx_Stage2,
- false,
+ ret = get_phys_addr_lpae(env, addr, MMU_DATA_LOAD, s2_mmu_idx, false,
&s2pa, &txattrs, &s2prot, &s2size, fi,
&cacheattrs);
if (ret) {
diff --git a/target/arm/internals.h b/target/arm/internals.h
index 5460678756..4e4798574b 100644
--- a/target/arm/internals.h
+++ b/target/arm/internals.h
@@ -1146,17 +1146,23 @@ ARMMMUIdx arm_stage1_mmu_idx(CPUARMState *env);
/**
* arm_mmu_idx_is_stage1_of_2:
- * @mmu_idx: The ARMMMUIdx to test
+ * @s1_mmu_idx: The ARMMMUIdx to test
+ * @s2_mmu_idx: Storage space for the stage 2 ARMMMUIdx
*
- * Return true if @mmu_idx is a NOTLB mmu_idx that is the
- * first stage of a two stage regime.
+ * Return true if @mmu_idx is a NOTLB mmu_idx that is the first stage
+ * of a two stage regime. The corresponding second stage will be
+ * stored in @s2_mmu_idx.
*/
-static inline bool arm_mmu_idx_is_stage1_of_2(ARMMMUIdx mmu_idx)
+static inline bool arm_mmu_idx_is_stage1_of_2(ARMMMUIdx s1_mmu_idx,
+ ARMMMUIdx *s2_mmu_idx)
{
- switch (mmu_idx) {
+ switch (s1_mmu_idx) {
case ARMMMUIdx_Stage1_E0:
case ARMMMUIdx_Stage1_E1:
case ARMMMUIdx_Stage1_E1_PAN:
+ if (s2_mmu_idx != NULL) {
+ *s2_mmu_idx = ARMMMUIdx_Stage2;
+ }
return true;
default:
return false;
--
2.29.2
^ permalink raw reply related [flat|nested] 26+ messages in thread
* [PATCH 09/17] target/arm: add MMU stage 1 for Secure EL2
2020-11-23 8:01 [PATCHv3 00/17] ARMv8.4 Secure EL2 Rémi Denis-Courmont
` (7 preceding siblings ...)
2020-11-23 8:02 ` [PATCH 08/17] target/arm: return the stage 2 index for stage 1 remi.denis.courmont
@ 2020-11-23 8:02 ` remi.denis.courmont
2020-11-23 8:02 ` [PATCH 10/17] target/arm: add ARMv8.4-SEL2 system registers remi.denis.courmont
` (8 subsequent siblings)
17 siblings, 0 replies; 26+ messages in thread
From: remi.denis.courmont @ 2020-11-23 8:02 UTC (permalink / raw)
To: qemu-arm; +Cc: qemu-devel
From: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
This adds the MMU indices for EL2 stage 1 in secure mode.
To keep code contained, which is largelly identical between secure and
non-secure modes, the MMU indices are reassigned. The new assignments
provide a systematic pattern with a non-secure bit.
Signed-off-by: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
target/arm/cpu-param.h | 2 +-
target/arm/cpu.h | 37 +++++++----
target/arm/helper.c | 127 ++++++++++++++++++++++++-------------
target/arm/internals.h | 12 ++++
target/arm/translate-a64.c | 4 ++
5 files changed, 124 insertions(+), 58 deletions(-)
diff --git a/target/arm/cpu-param.h b/target/arm/cpu-param.h
index 6321385b46..00e7d9e937 100644
--- a/target/arm/cpu-param.h
+++ b/target/arm/cpu-param.h
@@ -29,6 +29,6 @@
# define TARGET_PAGE_BITS_MIN 10
#endif
-#define NB_MMU_MODES 11
+#define NB_MMU_MODES 15
#endif
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index 1166bd8731..c436dd5161 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -2947,6 +2947,9 @@ bool write_cpustate_to_list(ARMCPU *cpu, bool kvm_sync);
#define ARM_MMU_IDX_NOTLB 0x20 /* does not have a TLB */
#define ARM_MMU_IDX_M 0x40 /* M profile */
+/* Meanings of the bits for A profile mmu idx values */
+#define ARM_MMU_IDX_A_NS 0x8
+
/* Meanings of the bits for M profile mmu idx values */
#define ARM_MMU_IDX_M_PRIV 0x1
#define ARM_MMU_IDX_M_NEGPRI 0x2
@@ -2960,20 +2963,22 @@ typedef enum ARMMMUIdx {
/*
* A-profile.
*/
- ARMMMUIdx_E10_0 = 0 | ARM_MMU_IDX_A,
- ARMMMUIdx_E20_0 = 1 | ARM_MMU_IDX_A,
-
- ARMMMUIdx_E10_1 = 2 | ARM_MMU_IDX_A,
- ARMMMUIdx_E10_1_PAN = 3 | ARM_MMU_IDX_A,
-
- ARMMMUIdx_E2 = 4 | ARM_MMU_IDX_A,
- ARMMMUIdx_E20_2 = 5 | ARM_MMU_IDX_A,
- ARMMMUIdx_E20_2_PAN = 6 | ARM_MMU_IDX_A,
-
- ARMMMUIdx_SE10_0 = 7 | ARM_MMU_IDX_A,
- ARMMMUIdx_SE10_1 = 8 | ARM_MMU_IDX_A,
- ARMMMUIdx_SE10_1_PAN = 9 | ARM_MMU_IDX_A,
- ARMMMUIdx_SE3 = 10 | ARM_MMU_IDX_A,
+ ARMMMUIdx_SE10_0 = 0 | ARM_MMU_IDX_A,
+ ARMMMUIdx_SE20_0 = 1 | ARM_MMU_IDX_A,
+ ARMMMUIdx_SE10_1 = 2 | ARM_MMU_IDX_A,
+ ARMMMUIdx_SE20_2 = 3 | ARM_MMU_IDX_A,
+ ARMMMUIdx_SE10_1_PAN = 4 | ARM_MMU_IDX_A,
+ ARMMMUIdx_SE20_2_PAN = 5 | ARM_MMU_IDX_A,
+ ARMMMUIdx_SE2 = 6 | ARM_MMU_IDX_A,
+ ARMMMUIdx_SE3 = 7 | ARM_MMU_IDX_A,
+
+ ARMMMUIdx_E10_0 = ARMMMUIdx_SE10_0 | ARM_MMU_IDX_A_NS,
+ ARMMMUIdx_E20_0 = ARMMMUIdx_SE20_0 | ARM_MMU_IDX_A_NS,
+ ARMMMUIdx_E10_1 = ARMMMUIdx_SE10_1 | ARM_MMU_IDX_A_NS,
+ ARMMMUIdx_E20_2 = ARMMMUIdx_SE20_2 | ARM_MMU_IDX_A_NS,
+ ARMMMUIdx_E10_1_PAN = ARMMMUIdx_SE10_1_PAN | ARM_MMU_IDX_A_NS,
+ ARMMMUIdx_E20_2_PAN = ARMMMUIdx_SE20_2_PAN | ARM_MMU_IDX_A_NS,
+ ARMMMUIdx_E2 = ARMMMUIdx_SE2 | ARM_MMU_IDX_A_NS,
/*
* These are not allocated TLBs and are used only for AT system
@@ -3020,8 +3025,12 @@ typedef enum ARMMMUIdxBit {
TO_CORE_BIT(E20_2),
TO_CORE_BIT(E20_2_PAN),
TO_CORE_BIT(SE10_0),
+ TO_CORE_BIT(SE20_0),
TO_CORE_BIT(SE10_1),
+ TO_CORE_BIT(SE20_2),
TO_CORE_BIT(SE10_1_PAN),
+ TO_CORE_BIT(SE20_2_PAN),
+ TO_CORE_BIT(SE2),
TO_CORE_BIT(SE3),
TO_CORE_BIT(MUser),
diff --git a/target/arm/helper.c b/target/arm/helper.c
index f52d77f5a5..318c7e5441 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -2861,6 +2861,9 @@ static int gt_phys_redir_timeridx(CPUARMState *env)
case ARMMMUIdx_E20_0:
case ARMMMUIdx_E20_2:
case ARMMMUIdx_E20_2_PAN:
+ case ARMMMUIdx_SE20_0:
+ case ARMMMUIdx_SE20_2:
+ case ARMMMUIdx_SE20_2_PAN:
return GTIMER_HYP;
default:
return GTIMER_PHYS;
@@ -2873,6 +2876,9 @@ static int gt_virt_redir_timeridx(CPUARMState *env)
case ARMMMUIdx_E20_0:
case ARMMMUIdx_E20_2:
case ARMMMUIdx_E20_2_PAN:
+ case ARMMMUIdx_SE20_0:
+ case ARMMMUIdx_SE20_2:
+ case ARMMMUIdx_SE20_2_PAN:
return GTIMER_HYPVIRT;
default:
return GTIMER_VIRT;
@@ -3576,7 +3582,7 @@ static void ats_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value)
mmu_idx = ARMMMUIdx_SE3;
break;
case 2:
- g_assert(!secure); /* TODO: ARMv8.4-SecEL2 */
+ g_assert(!secure); /* ARMv8.4-SecEL2 is 64-bit only */
/* fall through */
case 1:
if (ri->crm == 9 && (env->uncached_cpsr & CPSR_PAN)) {
@@ -3672,7 +3678,7 @@ static void ats_write64(CPUARMState *env, const ARMCPRegInfo *ri,
}
break;
case 4: /* AT S1E2R, AT S1E2W */
- mmu_idx = ARMMMUIdx_E2;
+ mmu_idx = secure ? ARMMMUIdx_SE2 : ARMMMUIdx_E2;
break;
case 6: /* AT S1E3R, AT S1E3W */
mmu_idx = ARMMMUIdx_SE3;
@@ -3987,10 +3993,15 @@ static void vmsa_tcr_ttbr_el2_write(CPUARMState *env, const ARMCPRegInfo *ri,
*/
if (extract64(raw_read(env, ri) ^ value, 48, 16) &&
(arm_hcr_el2_eff(env) & HCR_E2H)) {
- tlb_flush_by_mmuidx(env_cpu(env),
- ARMMMUIdxBit_E20_2 |
- ARMMMUIdxBit_E20_2_PAN |
- ARMMMUIdxBit_E20_0);
+ uint16_t mask = ARMMMUIdxBit_E20_2 |
+ ARMMMUIdxBit_E20_2_PAN |
+ ARMMMUIdxBit_E20_0;
+
+ if (arm_is_secure_below_el3(env)) {
+ mask >>= ARM_MMU_IDX_A_NS;
+ }
+
+ tlb_flush_by_mmuidx(env_cpu(env), mask);
}
raw_write(env, ri, value);
}
@@ -4441,9 +4452,15 @@ static int vae1_tlbmask(CPUARMState *env)
uint64_t hcr = arm_hcr_el2_eff(env);
if ((hcr & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)) {
- return ARMMMUIdxBit_E20_2 |
- ARMMMUIdxBit_E20_2_PAN |
- ARMMMUIdxBit_E20_0;
+ uint16_t mask = ARMMMUIdxBit_E20_2 |
+ ARMMMUIdxBit_E20_2_PAN |
+ ARMMMUIdxBit_E20_0;
+
+ if (arm_is_secure_below_el3(env)) {
+ mask >>= ARM_MMU_IDX_A_NS;
+ }
+
+ return mask;
} else if (arm_is_secure_below_el3(env)) {
return ARMMMUIdxBit_SE10_1 |
ARMMMUIdxBit_SE10_1_PAN |
@@ -4468,17 +4485,20 @@ static int tlbbits_for_regime(CPUARMState *env, ARMMMUIdx mmu_idx,
static int vae1_tlbbits(CPUARMState *env, uint64_t addr)
{
+ uint64_t hcr = arm_hcr_el2_eff(env);
ARMMMUIdx mmu_idx;
/* Only the regime of the mmu_idx below is significant. */
- if (arm_is_secure_below_el3(env)) {
- mmu_idx = ARMMMUIdx_SE10_0;
- } else if ((env->cp15.hcr_el2 & (HCR_E2H | HCR_TGE))
- == (HCR_E2H | HCR_TGE)) {
+ if ((hcr & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)) {
mmu_idx = ARMMMUIdx_E20_0;
} else {
mmu_idx = ARMMMUIdx_E10_0;
}
+
+ if (arm_is_secure_below_el3(env)) {
+ mmu_idx &= ~ARM_MMU_IDX_A_NS;
+ }
+
return tlbbits_for_regime(env, mmu_idx, addr);
}
@@ -4524,11 +4544,17 @@ static int alle1_tlbmask(CPUARMState *env)
static int e2_tlbmask(CPUARMState *env)
{
- /* TODO: ARMv8.4-SecEL2 */
- return ARMMMUIdxBit_E20_0 |
- ARMMMUIdxBit_E20_2 |
- ARMMMUIdxBit_E20_2_PAN |
- ARMMMUIdxBit_E2;
+ if (arm_is_secure_below_el3(env)) {
+ return ARMMMUIdxBit_SE20_0 |
+ ARMMMUIdxBit_SE20_2 |
+ ARMMMUIdxBit_SE20_2_PAN |
+ ARMMMUIdxBit_SE2;
+ } else {
+ return ARMMMUIdxBit_E20_0 |
+ ARMMMUIdxBit_E20_2 |
+ ARMMMUIdxBit_E20_2_PAN |
+ ARMMMUIdxBit_E2;
+ }
}
static void tlbi_aa64_alle1_write(CPUARMState *env, const ARMCPRegInfo *ri,
@@ -4648,10 +4674,12 @@ static void tlbi_aa64_vae2is_write(CPUARMState *env, const ARMCPRegInfo *ri,
{
CPUState *cs = env_cpu(env);
uint64_t pageaddr = sextract64(value << 12, 0, 56);
- int bits = tlbbits_for_regime(env, ARMMMUIdx_E2, pageaddr);
+ bool secure = arm_is_secure_below_el3(env);
+ int mask = secure ? ARMMMUIdxBit_SE2 : ARMMMUIdxBit_E2;
+ int bits = tlbbits_for_regime(env, secure ? ARMMMUIdx_E2 : ARMMMUIdx_SE2,
+ pageaddr);
- tlb_flush_page_bits_by_mmuidx_all_cpus_synced(cs, pageaddr,
- ARMMMUIdxBit_E2, bits);
+ tlb_flush_page_bits_by_mmuidx_all_cpus_synced(cs, pageaddr, mask, bits);
}
static void tlbi_aa64_vae3is_write(CPUARMState *env, const ARMCPRegInfo *ri,
@@ -9957,7 +9985,8 @@ uint64_t arm_sctlr(CPUARMState *env, int el)
/* Only EL0 needs to be adjusted for EL1&0 or EL2&0. */
if (el == 0) {
ARMMMUIdx mmu_idx = arm_mmu_idx_el(env, 0);
- el = (mmu_idx == ARMMMUIdx_E20_0 ? 2 : 1);
+ el = (mmu_idx == ARMMMUIdx_E20_0 || mmu_idx == ARMMMUIdx_SE20_0)
+ ? 2 : 1;
}
return env->cp15.sctlr_el[el];
}
@@ -10086,6 +10115,7 @@ static inline bool regime_is_user(CPUARMState *env, ARMMMUIdx mmu_idx)
switch (mmu_idx) {
case ARMMMUIdx_SE10_0:
case ARMMMUIdx_E20_0:
+ case ARMMMUIdx_SE20_0:
case ARMMMUIdx_Stage1_E0:
case ARMMMUIdx_MUser:
case ARMMMUIdx_MSUser:
@@ -12664,6 +12694,7 @@ int arm_mmu_idx_to_el(ARMMMUIdx mmu_idx)
case ARMMMUIdx_E10_0:
case ARMMMUIdx_E20_0:
case ARMMMUIdx_SE10_0:
+ case ARMMMUIdx_SE20_0:
return 0;
case ARMMMUIdx_E10_1:
case ARMMMUIdx_E10_1_PAN:
@@ -12673,6 +12704,9 @@ int arm_mmu_idx_to_el(ARMMMUIdx mmu_idx)
case ARMMMUIdx_E2:
case ARMMMUIdx_E20_2:
case ARMMMUIdx_E20_2_PAN:
+ case ARMMMUIdx_SE2:
+ case ARMMMUIdx_SE20_2:
+ case ARMMMUIdx_SE20_2_PAN:
return 2;
case ARMMMUIdx_SE3:
return 3;
@@ -12690,6 +12724,9 @@ ARMMMUIdx arm_v7m_mmu_idx_for_secstate(CPUARMState *env, bool secstate)
ARMMMUIdx arm_mmu_idx_el(CPUARMState *env, int el)
{
+ ARMMMUIdx idx;
+ uint64_t hcr;
+
if (arm_feature(env, ARM_FEATURE_M)) {
return arm_v7m_mmu_idx_for_secstate(env, env->v7m.secure);
}
@@ -12697,40 +12734,43 @@ ARMMMUIdx arm_mmu_idx_el(CPUARMState *env, int el)
/* See ARM pseudo-function ELIsInHost. */
switch (el) {
case 0:
- if (arm_is_secure_below_el3(env)) {
- return ARMMMUIdx_SE10_0;
- }
- if ((env->cp15.hcr_el2 & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)
- && arm_el_is_aa64(env, 2)) {
- return ARMMMUIdx_E20_0;
+ hcr = arm_hcr_el2_eff(env);
+ if ((hcr & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)) {
+ idx = ARMMMUIdx_E20_0;
+ } else {
+ idx = ARMMMUIdx_E10_0;
}
- return ARMMMUIdx_E10_0;
+ break;
case 1:
- if (arm_is_secure_below_el3(env)) {
- if (env->pstate & PSTATE_PAN) {
- return ARMMMUIdx_SE10_1_PAN;
- }
- return ARMMMUIdx_SE10_1;
- }
if (env->pstate & PSTATE_PAN) {
- return ARMMMUIdx_E10_1_PAN;
+ idx = ARMMMUIdx_E10_1_PAN;
+ } else {
+ idx = ARMMMUIdx_E10_1;
}
- return ARMMMUIdx_E10_1;
+ break;
case 2:
- /* TODO: ARMv8.4-SecEL2 */
/* Note that TGE does not apply at EL2. */
- if ((env->cp15.hcr_el2 & HCR_E2H) && arm_el_is_aa64(env, 2)) {
+ if (arm_hcr_el2_eff(env) & HCR_E2H) {
if (env->pstate & PSTATE_PAN) {
- return ARMMMUIdx_E20_2_PAN;
+ idx = ARMMMUIdx_E20_2_PAN;
+ } else {
+ idx = ARMMMUIdx_E20_2;
}
- return ARMMMUIdx_E20_2;
+ } else {
+ idx = ARMMMUIdx_E2;
}
- return ARMMMUIdx_E2;
+ break;
case 3:
return ARMMMUIdx_SE3;
default:
g_assert_not_reached();
}
+
+ if (arm_is_secure_below_el3(env)) {
+ idx &= ~ARM_MMU_IDX_A_NS;
+ }
+
+ return idx;
}
ARMMMUIdx arm_mmu_idx(CPUARMState *env)
@@ -12895,7 +12935,8 @@ static uint32_t rebuild_hflags_a64(CPUARMState *env, int el, int fp_el,
break;
case ARMMMUIdx_E20_2:
case ARMMMUIdx_E20_2_PAN:
- /* TODO: ARMv8.4-SecEL2 */
+ case ARMMMUIdx_SE20_2:
+ case ARMMMUIdx_SE20_2_PAN:
/*
* Note that EL20_2 is gated by HCR_EL2.E2H == 1, but EL20_0 is
* gated by HCR_EL2.<E2H,TGE> == '11', and so is LDTR.
diff --git a/target/arm/internals.h b/target/arm/internals.h
index 4e4798574b..ec6d6dd733 100644
--- a/target/arm/internals.h
+++ b/target/arm/internals.h
@@ -860,6 +860,9 @@ static inline bool regime_has_2_ranges(ARMMMUIdx mmu_idx)
case ARMMMUIdx_SE10_0:
case ARMMMUIdx_SE10_1:
case ARMMMUIdx_SE10_1_PAN:
+ case ARMMMUIdx_SE20_0:
+ case ARMMMUIdx_SE20_2:
+ case ARMMMUIdx_SE20_2_PAN:
return true;
default:
return false;
@@ -890,6 +893,10 @@ static inline bool regime_is_secure(CPUARMState *env, ARMMMUIdx mmu_idx)
case ARMMMUIdx_SE10_0:
case ARMMMUIdx_SE10_1:
case ARMMMUIdx_SE10_1_PAN:
+ case ARMMMUIdx_SE20_0:
+ case ARMMMUIdx_SE20_2:
+ case ARMMMUIdx_SE20_2_PAN:
+ case ARMMMUIdx_SE2:
case ARMMMUIdx_MSPrivNegPri:
case ARMMMUIdx_MSUserNegPri:
case ARMMMUIdx_MSPriv:
@@ -907,6 +914,7 @@ static inline bool regime_is_pan(CPUARMState *env, ARMMMUIdx mmu_idx)
case ARMMMUIdx_E10_1_PAN:
case ARMMMUIdx_E20_2_PAN:
case ARMMMUIdx_SE10_1_PAN:
+ case ARMMMUIdx_SE20_2_PAN:
return true;
default:
return false;
@@ -917,10 +925,14 @@ static inline bool regime_is_pan(CPUARMState *env, ARMMMUIdx mmu_idx)
static inline uint32_t regime_el(CPUARMState *env, ARMMMUIdx mmu_idx)
{
switch (mmu_idx) {
+ case ARMMMUIdx_SE20_0:
+ case ARMMMUIdx_SE20_2:
+ case ARMMMUIdx_SE20_2_PAN:
case ARMMMUIdx_E20_0:
case ARMMMUIdx_E20_2:
case ARMMMUIdx_E20_2_PAN:
case ARMMMUIdx_Stage2:
+ case ARMMMUIdx_SE2:
case ARMMMUIdx_E2:
return 2;
case ARMMMUIdx_SE3:
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index 2e3fdfdf6b..1ff109ca40 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -118,6 +118,10 @@ static int get_a64_user_mem_index(DisasContext *s)
case ARMMMUIdx_SE10_1_PAN:
useridx = ARMMMUIdx_SE10_0;
break;
+ case ARMMMUIdx_SE20_2:
+ case ARMMMUIdx_SE20_2_PAN:
+ useridx = ARMMMUIdx_SE20_0;
+ break;
default:
g_assert_not_reached();
}
--
2.29.2
^ permalink raw reply related [flat|nested] 26+ messages in thread
* [PATCH 10/17] target/arm: add ARMv8.4-SEL2 system registers
2020-11-23 8:01 [PATCHv3 00/17] ARMv8.4 Secure EL2 Rémi Denis-Courmont
` (8 preceding siblings ...)
2020-11-23 8:02 ` [PATCH 09/17] target/arm: add MMU stage 1 for Secure EL2 remi.denis.courmont
@ 2020-11-23 8:02 ` remi.denis.courmont
2020-11-23 8:02 ` [PATCH 11/17] target/arm: do S1_ptw_translate() before address space lookup remi.denis.courmont
` (7 subsequent siblings)
17 siblings, 0 replies; 26+ messages in thread
From: remi.denis.courmont @ 2020-11-23 8:02 UTC (permalink / raw)
To: qemu-arm; +Cc: qemu-devel
From: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
Signed-off-by: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
target/arm/cpu.h | 2 ++
target/arm/helper.c | 24 ++++++++++++++++++++++++
2 files changed, 26 insertions(+)
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index c436dd5161..c8288afb54 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -323,9 +323,11 @@ typedef struct CPUARMState {
uint64_t ttbr1_el[4];
};
uint64_t vttbr_el2; /* Virtualization Translation Table Base. */
+ uint64_t vsttbr_el2; /* Secure Virtualization Translation Table. */
/* MMU translation table base control. */
TCR tcr_el[4];
TCR vtcr_el2; /* Virtualization Translation Control. */
+ TCR vstcr_el2; /* Secure Virtualization Translation Control. */
uint32_t c2_data; /* MPU data cacheable bits. */
uint32_t c2_insn; /* MPU instruction cacheable bits. */
union { /* MMU domain access control register
diff --git a/target/arm/helper.c b/target/arm/helper.c
index 318c7e5441..9683f5aadc 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -5721,6 +5721,27 @@ static const ARMCPRegInfo el2_v8_cp_reginfo[] = {
REGINFO_SENTINEL
};
+static CPAccessResult sel2_access(CPUARMState *env, const ARMCPRegInfo *ri,
+ bool isread)
+{
+ if (arm_current_el(env) == 3 || arm_is_secure_below_el3(env)) {
+ return CP_ACCESS_OK;
+ }
+ return CP_ACCESS_TRAP_UNCATEGORIZED;
+}
+
+static const ARMCPRegInfo el2_sec_cp_reginfo[] = {
+ { .name = "VSTTBR_EL2", .state = ARM_CP_STATE_AA64,
+ .opc0 = 3, .opc1 = 4, .crn = 2, .crm = 6, .opc2 = 0,
+ .access = PL2_RW, .accessfn = sel2_access,
+ .fieldoffset = offsetof(CPUARMState, cp15.vsttbr_el2) },
+ { .name = "VSTCR_EL2", .state = ARM_CP_STATE_AA64,
+ .opc0 = 3, .opc1 = 4, .crn = 2, .crm = 6, .opc2 = 2,
+ .access = PL2_RW, .accessfn = sel2_access,
+ .fieldoffset = offsetof(CPUARMState, cp15.vstcr_el2) },
+ REGINFO_SENTINEL
+};
+
static CPAccessResult nsacr_access(CPUARMState *env, const ARMCPRegInfo *ri,
bool isread)
{
@@ -7733,6 +7754,9 @@ void register_cp_regs_for_features(ARMCPU *cpu)
if (arm_feature(env, ARM_FEATURE_V8)) {
define_arm_cp_regs(cpu, el2_v8_cp_reginfo);
}
+ if (cpu_isar_feature(aa64_sel2, cpu)) {
+ define_arm_cp_regs(cpu, el2_sec_cp_reginfo);
+ }
/* RVBAR_EL2 is only implemented if EL2 is the highest EL */
if (!arm_feature(env, ARM_FEATURE_EL3)) {
ARMCPRegInfo rvbar = {
--
2.29.2
^ permalink raw reply related [flat|nested] 26+ messages in thread
* [PATCH 11/17] target/arm: do S1_ptw_translate() before address space lookup
2020-11-23 8:01 [PATCHv3 00/17] ARMv8.4 Secure EL2 Rémi Denis-Courmont
` (9 preceding siblings ...)
2020-11-23 8:02 ` [PATCH 10/17] target/arm: add ARMv8.4-SEL2 system registers remi.denis.courmont
@ 2020-11-23 8:02 ` remi.denis.courmont
2020-11-23 8:02 ` [PATCH 12/17] target/arm: secure stage 2 translation regime remi.denis.courmont
` (6 subsequent siblings)
17 siblings, 0 replies; 26+ messages in thread
From: remi.denis.courmont @ 2020-11-23 8:02 UTC (permalink / raw)
To: qemu-arm; +Cc: qemu-devel
From: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
In the secure stage 2 translation regime, the VSTCR.SW and VTCR.NSW
bits can invert the secure flag for pagetable walks. This patchset
allows S1_ptw_translate() to change the non-secure bit.
Signed-off-by: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
target/arm/helper.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/target/arm/helper.c b/target/arm/helper.c
index 9683f5aadc..e4681b1397 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -10391,7 +10391,7 @@ static bool get_level1_table_address(CPUARMState *env, ARMMMUIdx mmu_idx,
/* Translate a S1 pagetable walk through S2 if needed. */
static hwaddr S1_ptw_translate(CPUARMState *env, ARMMMUIdx mmu_idx,
- hwaddr addr, MemTxAttrs txattrs,
+ hwaddr addr, bool *is_secure,
ARMMMUFaultInfo *fi)
{
ARMMMUIdx s2_mmu_idx;
@@ -10403,6 +10403,9 @@ static hwaddr S1_ptw_translate(CPUARMState *env, ARMMMUIdx mmu_idx,
int s2prot;
int ret;
ARMCacheAttrs cacheattrs = {};
+ MemTxAttrs txattrs = {};
+
+ assert(!*is_secure); /* TODO: S-EL2 */
ret = get_phys_addr_lpae(env, addr, MMU_DATA_LOAD, s2_mmu_idx, false,
&s2pa, &txattrs, &s2prot, &s2size, fi,
@@ -10442,9 +10445,9 @@ static uint32_t arm_ldl_ptw(CPUState *cs, hwaddr addr, bool is_secure,
AddressSpace *as;
uint32_t data;
+ addr = S1_ptw_translate(env, mmu_idx, addr, &is_secure, fi);
attrs.secure = is_secure;
as = arm_addressspace(cs, attrs);
- addr = S1_ptw_translate(env, mmu_idx, addr, attrs, fi);
if (fi->s1ptw) {
return 0;
}
@@ -10471,9 +10474,9 @@ static uint64_t arm_ldq_ptw(CPUState *cs, hwaddr addr, bool is_secure,
AddressSpace *as;
uint64_t data;
+ addr = S1_ptw_translate(env, mmu_idx, addr, &is_secure, fi);
attrs.secure = is_secure;
as = arm_addressspace(cs, attrs);
- addr = S1_ptw_translate(env, mmu_idx, addr, attrs, fi);
if (fi->s1ptw) {
return 0;
}
--
2.29.2
^ permalink raw reply related [flat|nested] 26+ messages in thread
* [PATCH 12/17] target/arm: secure stage 2 translation regime
2020-11-23 8:01 [PATCHv3 00/17] ARMv8.4 Secure EL2 Rémi Denis-Courmont
` (10 preceding siblings ...)
2020-11-23 8:02 ` [PATCH 11/17] target/arm: do S1_ptw_translate() before address space lookup remi.denis.courmont
@ 2020-11-23 8:02 ` remi.denis.courmont
2020-11-23 8:02 ` [PATCH 13/17] target/arm: handle VMID change in secure state remi.denis.courmont
` (5 subsequent siblings)
17 siblings, 0 replies; 26+ messages in thread
From: remi.denis.courmont @ 2020-11-23 8:02 UTC (permalink / raw)
To: qemu-arm; +Cc: qemu-devel
From: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
Signed-off-by: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
---
target/arm/cpu.h | 11 ++++-
target/arm/helper.c | 96 ++++++++++++++++++++++++++++++++----------
target/arm/internals.h | 26 ++++++++++++
3 files changed, 109 insertions(+), 24 deletions(-)
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index c8288afb54..a5dd0c5ba4 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -168,6 +168,11 @@ typedef struct {
uint32_t base_mask;
} TCR;
+#define VTCR_NSW (1u << 29)
+#define VTCR_NSA (1u << 30)
+#define VSTCR_SW VTCR_NSW
+#define VSTCR_SA VTCR_NSA
+
/* Define a maximum sized vector register.
* For 32-bit, this is a 128-bit NEON/AdvSIMD register.
* For 64-bit, this is a 2048-bit SVE register.
@@ -2989,6 +2994,9 @@ typedef enum ARMMMUIdx {
ARMMMUIdx_Stage1_E0 = 0 | ARM_MMU_IDX_NOTLB,
ARMMMUIdx_Stage1_E1 = 1 | ARM_MMU_IDX_NOTLB,
ARMMMUIdx_Stage1_E1_PAN = 2 | ARM_MMU_IDX_NOTLB,
+ ARMMMUIdx_Stage1_SE0 = 3 | ARM_MMU_IDX_NOTLB,
+ ARMMMUIdx_Stage1_SE1 = 4 | ARM_MMU_IDX_NOTLB,
+ ARMMMUIdx_Stage1_SE1_PAN = 5 | ARM_MMU_IDX_NOTLB,
/*
* Not allocated a TLB: used only for second stage of an S12 page
* table walk, or for descriptor loads during first stage of an S1
@@ -2996,7 +3004,8 @@ typedef enum ARMMMUIdx {
* then various TLB flush insns which currently are no-ops or flush
* only stage 1 MMU indexes will need to change to flush stage 2.
*/
- ARMMMUIdx_Stage2 = 3 | ARM_MMU_IDX_NOTLB,
+ ARMMMUIdx_Stage2 = 6 | ARM_MMU_IDX_NOTLB,
+ ARMMMUIdx_Stage2_S = 7 | ARM_MMU_IDX_NOTLB,
/*
* M-profile.
diff --git a/target/arm/helper.c b/target/arm/helper.c
index e4681b1397..9c338a4a97 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -3429,7 +3429,7 @@ static uint64_t do_ats_write(CPUARMState *env, uint64_t value,
uint32_t syn, fsr, fsc;
bool take_exc = false;
- if (fi.s1ptw && current_el == 1 && !arm_is_secure(env)
+ if (fi.s1ptw && current_el == 1
&& arm_mmu_idx_is_stage1_of_2(mmu_idx, NULL)) {
/*
* Synchronous stage 2 fault on an access made as part of the
@@ -3586,10 +3586,10 @@ static void ats_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value)
/* fall through */
case 1:
if (ri->crm == 9 && (env->uncached_cpsr & CPSR_PAN)) {
- mmu_idx = (secure ? ARMMMUIdx_SE10_1_PAN
+ mmu_idx = (secure ? ARMMMUIdx_Stage1_SE1_PAN
: ARMMMUIdx_Stage1_E1_PAN);
} else {
- mmu_idx = secure ? ARMMMUIdx_SE10_1 : ARMMMUIdx_Stage1_E1;
+ mmu_idx = secure ? ARMMMUIdx_Stage1_SE1 : ARMMMUIdx_Stage1_E1;
}
break;
default:
@@ -3603,10 +3603,11 @@ static void ats_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value)
mmu_idx = ARMMMUIdx_SE10_0;
break;
case 2:
+ g_assert(!secure); /* ARMv8.4-SecEL2 is 64-bit only */
mmu_idx = ARMMMUIdx_Stage1_E0;
break;
case 1:
- mmu_idx = secure ? ARMMMUIdx_SE10_0 : ARMMMUIdx_Stage1_E0;
+ mmu_idx = secure ? ARMMMUIdx_Stage1_SE0 : ARMMMUIdx_Stage1_E0;
break;
default:
g_assert_not_reached();
@@ -3671,10 +3672,10 @@ static void ats_write64(CPUARMState *env, const ARMCPRegInfo *ri,
switch (ri->opc1) {
case 0: /* AT S1E1R, AT S1E1W, AT S1E1RP, AT S1E1WP */
if (ri->crm == 9 && (env->pstate & PSTATE_PAN)) {
- mmu_idx = (secure ? ARMMMUIdx_SE10_1_PAN
+ mmu_idx = (secure ? ARMMMUIdx_Stage1_SE1_PAN
: ARMMMUIdx_Stage1_E1_PAN);
} else {
- mmu_idx = secure ? ARMMMUIdx_SE10_1 : ARMMMUIdx_Stage1_E1;
+ mmu_idx = secure ? ARMMMUIdx_Stage1_SE1 : ARMMMUIdx_Stage1_E1;
}
break;
case 4: /* AT S1E2R, AT S1E2W */
@@ -3688,7 +3689,7 @@ static void ats_write64(CPUARMState *env, const ARMCPRegInfo *ri,
}
break;
case 2: /* AT S1E0R, AT S1E0W */
- mmu_idx = secure ? ARMMMUIdx_SE10_0 : ARMMMUIdx_Stage1_E0;
+ mmu_idx = secure ? ARMMMUIdx_Stage1_SE0 : ARMMMUIdx_Stage1_E0;
break;
case 4: /* AT S12E1R, AT S12E1W */
mmu_idx = secure ? ARMMMUIdx_SE10_1 : ARMMMUIdx_E10_1;
@@ -10049,7 +10050,7 @@ static inline bool regime_translation_disabled(CPUARMState *env,
hcr_el2 = arm_hcr_el2_eff(env);
- if (mmu_idx == ARMMMUIdx_Stage2) {
+ if (mmu_idx == ARMMMUIdx_Stage2 || mmu_idx == ARMMMUIdx_Stage2_S) {
/* HCR.DC means HCR.VM behaves as 1 */
return (hcr_el2 & (HCR_DC | HCR_VM)) == 0;
}
@@ -10082,6 +10083,9 @@ static inline uint64_t regime_ttbr(CPUARMState *env, ARMMMUIdx mmu_idx,
if (mmu_idx == ARMMMUIdx_Stage2) {
return env->cp15.vttbr_el2;
}
+ if (mmu_idx == ARMMMUIdx_Stage2_S) {
+ return env->cp15.vsttbr_el2;
+ }
if (ttbrn == 0) {
return env->cp15.ttbr0_el[regime_el(env, mmu_idx)];
} else {
@@ -10097,6 +10101,12 @@ static inline uint64_t regime_ttbr(CPUARMState *env, ARMMMUIdx mmu_idx,
static inline ARMMMUIdx stage_1_mmu_idx(ARMMMUIdx mmu_idx)
{
switch (mmu_idx) {
+ case ARMMMUIdx_SE10_0:
+ return ARMMMUIdx_Stage1_SE0;
+ case ARMMMUIdx_SE10_1:
+ return ARMMMUIdx_Stage1_SE1;
+ case ARMMMUIdx_SE10_1_PAN:
+ return ARMMMUIdx_Stage1_SE1_PAN;
case ARMMMUIdx_E10_0:
return ARMMMUIdx_Stage1_E0;
case ARMMMUIdx_E10_1:
@@ -10141,6 +10151,7 @@ static inline bool regime_is_user(CPUARMState *env, ARMMMUIdx mmu_idx)
case ARMMMUIdx_E20_0:
case ARMMMUIdx_SE20_0:
case ARMMMUIdx_Stage1_E0:
+ case ARMMMUIdx_Stage1_SE0:
case ARMMMUIdx_MUser:
case ARMMMUIdx_MSUser:
case ARMMMUIdx_MUserNegPri:
@@ -10306,6 +10317,7 @@ static int get_S1prot(CPUARMState *env, ARMMMUIdx mmu_idx, bool is_aa64,
int wxn = 0;
assert(mmu_idx != ARMMMUIdx_Stage2);
+ assert(mmu_idx != ARMMMUIdx_Stage2_S);
user_rw = simple_ap_to_rw_prot_is_user(ap, true);
if (is_user) {
@@ -10405,7 +10417,21 @@ static hwaddr S1_ptw_translate(CPUARMState *env, ARMMMUIdx mmu_idx,
ARMCacheAttrs cacheattrs = {};
MemTxAttrs txattrs = {};
- assert(!*is_secure); /* TODO: S-EL2 */
+ if (s2_mmu_idx == ARMMMUIdx_Stage2_S) {
+ /* Check if page table walk is to secure or non-secure PA space. */
+ if (*is_secure) {
+ *is_secure = !(env->cp15.vstcr_el2.raw_tcr & VSTCR_SW);
+ } else {
+ *is_secure = !(env->cp15.vtcr_el2.raw_tcr & VTCR_NSW);
+ }
+ if (*is_secure) {
+ txattrs.secure = true;
+ } else {
+ s2_mmu_idx = ARMMMUIdx_Stage2;
+ }
+ } else {
+ assert(!*is_secure);
+ }
ret = get_phys_addr_lpae(env, addr, MMU_DATA_LOAD, s2_mmu_idx, false,
&s2pa, &txattrs, &s2prot, &s2size, fi,
@@ -10871,7 +10897,7 @@ static int aa64_va_parameter_tbi(uint64_t tcr, ARMMMUIdx mmu_idx)
{
if (regime_has_2_ranges(mmu_idx)) {
return extract64(tcr, 37, 2);
- } else if (mmu_idx == ARMMMUIdx_Stage2) {
+ } else if (mmu_idx == ARMMMUIdx_Stage2 || mmu_idx == ARMMMUIdx_Stage2_S) {
return 0; /* VTCR_EL2 */
} else {
/* Replicate the single TBI bit so we always have 2 bits. */
@@ -10883,7 +10909,7 @@ static int aa64_va_parameter_tbid(uint64_t tcr, ARMMMUIdx mmu_idx)
{
if (regime_has_2_ranges(mmu_idx)) {
return extract64(tcr, 51, 2);
- } else if (mmu_idx == ARMMMUIdx_Stage2) {
+ } else if (mmu_idx == ARMMMUIdx_Stage2 || mmu_idx == ARMMMUIdx_Stage2_S) {
return 0; /* VTCR_EL2 */
} else {
/* Replicate the single TBID bit so we always have 2 bits. */
@@ -10913,7 +10939,7 @@ ARMVAParameters aa64_va_parameters(CPUARMState *env, uint64_t va,
tsz = extract32(tcr, 0, 6);
using64k = extract32(tcr, 14, 1);
using16k = extract32(tcr, 15, 1);
- if (mmu_idx == ARMMMUIdx_Stage2) {
+ if (mmu_idx == ARMMMUIdx_Stage2 || mmu_idx == ARMMMUIdx_Stage2_S) {
/* VTCR_EL2 */
hpd = false;
} else {
@@ -10971,6 +10997,8 @@ static ARMVAParameters aa32_va_parameters(CPUARMState *env, uint32_t va,
int select, tsz;
bool epd, hpd;
+ assert(mmu_idx != ARMMMUIdx_Stage2_S);
+
if (mmu_idx == ARMMMUIdx_Stage2) {
/* VTCR */
bool sext = extract32(tcr, 4, 1);
@@ -11136,7 +11164,7 @@ static bool get_phys_addr_lpae(CPUARMState *env, target_ulong address,
goto do_fault;
}
- if (mmu_idx != ARMMMUIdx_Stage2) {
+ if (mmu_idx != ARMMMUIdx_Stage2 && mmu_idx != ARMMMUIdx_Stage2_S) {
/* The starting level depends on the virtual address size (which can
* be up to 48 bits) and the translation granule size. It indicates
* the number of strides (stride bits at a time) needed to
@@ -11240,7 +11268,7 @@ static bool get_phys_addr_lpae(CPUARMState *env, target_ulong address,
attrs = extract64(descriptor, 2, 10)
| (extract64(descriptor, 52, 12) << 10);
- if (mmu_idx == ARMMMUIdx_Stage2) {
+ if (mmu_idx == ARMMMUIdx_Stage2 || mmu_idx == ARMMMUIdx_Stage2_S) {
/* Stage 2 table descriptors do not include any attribute fields */
break;
}
@@ -11270,8 +11298,10 @@ static bool get_phys_addr_lpae(CPUARMState *env, target_ulong address,
ap = extract32(attrs, 4, 2);
- if (mmu_idx == ARMMMUIdx_Stage2) {
- ns = true;
+ if (mmu_idx == ARMMMUIdx_Stage2 || mmu_idx == ARMMMUIdx_Stage2_S) {
+ if (mmu_idx == ARMMMUIdx_Stage2) {
+ ns = true;
+ }
xn = extract32(attrs, 11, 2);
*prot = get_S2prot(env, ap, xn, s1_is_el0);
} else {
@@ -11298,7 +11328,7 @@ static bool get_phys_addr_lpae(CPUARMState *env, target_ulong address,
arm_tlb_bti_gp(txattrs) = true;
}
- if (mmu_idx == ARMMMUIdx_Stage2) {
+ if (mmu_idx == ARMMMUIdx_Stage2 || mmu_idx == ARMMMUIdx_Stage2_S) {
cacheattrs->attrs = convert_stage2_attrs(env, extract32(attrs, 0, 4));
} else {
/* Index into MAIR registers for cache attributes */
@@ -11317,7 +11347,8 @@ do_fault:
fi->type = fault_type;
fi->level = level;
/* Tag the error as S2 for failed S1 PTW at S2 or ordinary S2. */
- fi->stage2 = fi->s1ptw || (mmu_idx == ARMMMUIdx_Stage2);
+ fi->stage2 = fi->s1ptw || (mmu_idx == ARMMMUIdx_Stage2 ||
+ mmu_idx == ARMMMUIdx_Stage2_S);
return true;
}
@@ -12133,7 +12164,10 @@ bool get_phys_addr(CPUARMState *env, target_ulong address,
{
if (mmu_idx == ARMMMUIdx_E10_0 ||
mmu_idx == ARMMMUIdx_E10_1 ||
- mmu_idx == ARMMMUIdx_E10_1_PAN) {
+ mmu_idx == ARMMMUIdx_E10_1_PAN ||
+ mmu_idx == ARMMMUIdx_SE10_0 ||
+ mmu_idx == ARMMMUIdx_SE10_1 ||
+ mmu_idx == ARMMMUIdx_SE10_1_PAN) {
/* Call ourselves recursively to do the stage 1 and then stage 2
* translations.
*/
@@ -12141,21 +12175,25 @@ bool get_phys_addr(CPUARMState *env, target_ulong address,
hwaddr ipa;
int s2_prot;
int ret;
+ ARMMMUIdx s2_mmu_idx;
+ bool is_el0;
ARMCacheAttrs cacheattrs2 = {};
ret = get_phys_addr(env, address, access_type,
stage_1_mmu_idx(mmu_idx), &ipa, attrs,
prot, page_size, fi, cacheattrs);
+ s2_mmu_idx = attrs->secure ? ARMMMUIdx_Stage2_S : ARMMMUIdx_Stage2;
+ is_el0 = mmu_idx == ARMMMUIdx_SE10_0 || mmu_idx == ARMMMUIdx_E10_0;
+
/* If S1 fails or S2 is disabled, return early. */
- if (ret || regime_translation_disabled(env, ARMMMUIdx_Stage2)) {
+ if (ret || regime_translation_disabled(env, s2_mmu_idx)) {
*phys_ptr = ipa;
return ret;
}
/* S1 is done. Now do S2 translation. */
- ret = get_phys_addr_lpae(env, ipa, access_type, ARMMMUIdx_Stage2,
- mmu_idx == ARMMMUIdx_E10_0,
+ ret = get_phys_addr_lpae(env, ipa, access_type, s2_mmu_idx, is_el0,
phys_ptr, attrs, &s2_prot,
page_size, fi, &cacheattrs2);
fi->s2addr = ipa;
@@ -12167,6 +12205,18 @@ bool get_phys_addr(CPUARMState *env, target_ulong address,
return ret;
}
+ /* Check if IPA translates to secure or non-secure PA space. */
+ if (arm_is_secure_below_el3(env)) {
+ if (attrs->secure) {
+ attrs->secure =
+ !(env->cp15.vstcr_el2.raw_tcr & (VSTCR_SA | VSTCR_SW));
+ } else {
+ attrs->secure =
+ !((env->cp15.vtcr_el2.raw_tcr & (VTCR_NSA | VTCR_NSW))
+ || (env->cp15.vstcr_el2.raw_tcr & VSTCR_SA));
+ }
+ }
+
/* Combine the S1 and S2 cache attributes. */
if (arm_hcr_el2_eff(env) & HCR_DC) {
/*
@@ -12250,7 +12300,7 @@ bool get_phys_addr(CPUARMState *env, target_ulong address,
* MMU disabled. S1 addresses within aa64 translation regimes are
* still checked for bounds -- see AArch64.TranslateAddressS1Off.
*/
- if (mmu_idx != ARMMMUIdx_Stage2) {
+ if (mmu_idx != ARMMMUIdx_Stage2 && mmu_idx != ARMMMUIdx_Stage2_S) {
int r_el = regime_el(env, mmu_idx);
if (arm_el_is_aa64(env, r_el)) {
int pamax = arm_pamax(env_archcpu(env));
diff --git a/target/arm/internals.h b/target/arm/internals.h
index ec6d6dd733..5205e3ad8d 100644
--- a/target/arm/internals.h
+++ b/target/arm/internals.h
@@ -851,6 +851,9 @@ static inline bool regime_has_2_ranges(ARMMMUIdx mmu_idx)
case ARMMMUIdx_Stage1_E0:
case ARMMMUIdx_Stage1_E1:
case ARMMMUIdx_Stage1_E1_PAN:
+ case ARMMMUIdx_Stage1_SE0:
+ case ARMMMUIdx_Stage1_SE1:
+ case ARMMMUIdx_Stage1_SE1_PAN:
case ARMMMUIdx_E10_0:
case ARMMMUIdx_E10_1:
case ARMMMUIdx_E10_1_PAN:
@@ -896,7 +899,11 @@ static inline bool regime_is_secure(CPUARMState *env, ARMMMUIdx mmu_idx)
case ARMMMUIdx_SE20_0:
case ARMMMUIdx_SE20_2:
case ARMMMUIdx_SE20_2_PAN:
+ case ARMMMUIdx_Stage1_SE0:
+ case ARMMMUIdx_Stage1_SE1:
+ case ARMMMUIdx_Stage1_SE1_PAN:
case ARMMMUIdx_SE2:
+ case ARMMMUIdx_Stage2_S:
case ARMMMUIdx_MSPrivNegPri:
case ARMMMUIdx_MSUserNegPri:
case ARMMMUIdx_MSPriv:
@@ -911,6 +918,7 @@ static inline bool regime_is_pan(CPUARMState *env, ARMMMUIdx mmu_idx)
{
switch (mmu_idx) {
case ARMMMUIdx_Stage1_E1_PAN:
+ case ARMMMUIdx_Stage1_SE1_PAN:
case ARMMMUIdx_E10_1_PAN:
case ARMMMUIdx_E20_2_PAN:
case ARMMMUIdx_SE10_1_PAN:
@@ -932,6 +940,7 @@ static inline uint32_t regime_el(CPUARMState *env, ARMMMUIdx mmu_idx)
case ARMMMUIdx_E20_2:
case ARMMMUIdx_E20_2_PAN:
case ARMMMUIdx_Stage2:
+ case ARMMMUIdx_Stage2_S:
case ARMMMUIdx_SE2:
case ARMMMUIdx_E2:
return 2;
@@ -944,6 +953,9 @@ static inline uint32_t regime_el(CPUARMState *env, ARMMMUIdx mmu_idx)
case ARMMMUIdx_Stage1_E0:
case ARMMMUIdx_Stage1_E1:
case ARMMMUIdx_Stage1_E1_PAN:
+ case ARMMMUIdx_Stage1_SE0:
+ case ARMMMUIdx_Stage1_SE1:
+ case ARMMMUIdx_Stage1_SE1_PAN:
case ARMMMUIdx_E10_0:
case ARMMMUIdx_E10_1:
case ARMMMUIdx_E10_1_PAN:
@@ -967,6 +979,13 @@ static inline TCR *regime_tcr(CPUARMState *env, ARMMMUIdx mmu_idx)
if (mmu_idx == ARMMMUIdx_Stage2) {
return &env->cp15.vtcr_el2;
}
+ if (mmu_idx == ARMMMUIdx_Stage2_S) {
+ /*
+ * Note: Secure stage 2 nominally shares fields from VTCR_EL2, but
+ * those are not currently used by QEMU, so just return VSTCR_EL2.
+ */
+ return &env->cp15.vstcr_el2;
+ }
return &env->cp15.tcr_el[regime_el(env, mmu_idx)];
}
@@ -1176,6 +1195,13 @@ static inline bool arm_mmu_idx_is_stage1_of_2(ARMMMUIdx s1_mmu_idx,
*s2_mmu_idx = ARMMMUIdx_Stage2;
}
return true;
+ case ARMMMUIdx_Stage1_SE0:
+ case ARMMMUIdx_Stage1_SE1:
+ case ARMMMUIdx_Stage1_SE1_PAN:
+ if (s2_mmu_idx != NULL) {
+ *s2_mmu_idx = ARMMMUIdx_Stage2_S;
+ }
+ return true;
default:
return false;
}
--
2.29.2
^ permalink raw reply related [flat|nested] 26+ messages in thread
* [PATCH 13/17] target/arm: handle VMID change in secure state
2020-11-23 8:01 [PATCHv3 00/17] ARMv8.4 Secure EL2 Rémi Denis-Courmont
` (11 preceding siblings ...)
2020-11-23 8:02 ` [PATCH 12/17] target/arm: secure stage 2 translation regime remi.denis.courmont
@ 2020-11-23 8:02 ` remi.denis.courmont
2020-11-23 8:02 ` [PATCH 14/17] target/arm: set HPFAR_EL2.NS on secure stage 2 faults remi.denis.courmont
` (4 subsequent siblings)
17 siblings, 0 replies; 26+ messages in thread
From: remi.denis.courmont @ 2020-11-23 8:02 UTC (permalink / raw)
To: qemu-arm; +Cc: qemu-devel
From: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
The VTTBR write callback so far assumes that the underlying VM lies in
non-secure state. This handles the secure state scenario.
Signed-off-by: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
target/arm/helper.c | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/target/arm/helper.c b/target/arm/helper.c
index 9c338a4a97..d46339f344 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -4018,10 +4018,15 @@ static void vttbr_write(CPUARMState *env, const ARMCPRegInfo *ri,
* the combined stage 1&2 tlbs (EL10_1 and EL10_0).
*/
if (raw_read(env, ri) != value) {
- tlb_flush_by_mmuidx(cs,
- ARMMMUIdxBit_E10_1 |
- ARMMMUIdxBit_E10_1_PAN |
- ARMMMUIdxBit_E10_0);
+ uint16_t mask = ARMMMUIdxBit_E10_1 |
+ ARMMMUIdxBit_E10_1_PAN |
+ ARMMMUIdxBit_E10_0;
+
+ if (arm_is_secure_below_el3(env)) {
+ mask >>= ARM_MMU_IDX_A_NS;
+ }
+
+ tlb_flush_by_mmuidx(cs, mask);
raw_write(env, ri, value);
}
}
--
2.29.2
^ permalink raw reply related [flat|nested] 26+ messages in thread
* [PATCH 14/17] target/arm: set HPFAR_EL2.NS on secure stage 2 faults
2020-11-23 8:01 [PATCHv3 00/17] ARMv8.4 Secure EL2 Rémi Denis-Courmont
` (12 preceding siblings ...)
2020-11-23 8:02 ` [PATCH 13/17] target/arm: handle VMID change in secure state remi.denis.courmont
@ 2020-11-23 8:02 ` remi.denis.courmont
2020-11-23 8:02 ` [PATCH 15/17] target/arm: add ARMv8.4-SEL2 extension remi.denis.courmont
` (3 subsequent siblings)
17 siblings, 0 replies; 26+ messages in thread
From: remi.denis.courmont @ 2020-11-23 8:02 UTC (permalink / raw)
To: qemu-arm; +Cc: qemu-devel
From: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
Signed-off-by: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
---
target/arm/cpu.h | 2 ++
target/arm/helper.c | 6 ++++++
target/arm/internals.h | 2 ++
target/arm/tlb_helper.c | 3 +++
4 files changed, 13 insertions(+)
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index a5dd0c5ba4..955f5c34d0 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -1482,6 +1482,8 @@ static inline void xpsr_write(CPUARMState *env, uint32_t val, uint32_t mask)
#define HCR_TWEDEN (1ULL << 59)
#define HCR_TWEDEL MAKE_64BIT_MASK(60, 4)
+#define HPFAR_NS (1ULL << 63)
+
#define SCR_NS (1U << 0)
#define SCR_IRQ (1U << 1)
#define SCR_FIQ (1U << 2)
diff --git a/target/arm/helper.c b/target/arm/helper.c
index d46339f344..86bf0548d9 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -3444,6 +3444,9 @@ static uint64_t do_ats_write(CPUARMState *env, uint64_t value,
target_el = 3;
} else {
env->cp15.hpfar_el2 = extract64(fi.s2addr, 12, 47) << 4;
+ if (arm_is_secure_below_el3(env) && fi.s1ns) {
+ env->cp15.hpfar_el2 |= HPFAR_NS;
+ }
target_el = 2;
}
take_exc = true;
@@ -10446,6 +10449,7 @@ static hwaddr S1_ptw_translate(CPUARMState *env, ARMMMUIdx mmu_idx,
fi->s2addr = addr;
fi->stage2 = true;
fi->s1ptw = true;
+ fi->s1ns = !*is_secure;
return ~0;
}
if ((arm_hcr_el2_eff(env) & HCR_PTW) &&
@@ -10458,6 +10462,7 @@ static hwaddr S1_ptw_translate(CPUARMState *env, ARMMMUIdx mmu_idx,
fi->s2addr = addr;
fi->stage2 = true;
fi->s1ptw = true;
+ fi->s1ns = !*is_secure;
return ~0;
}
addr = s2pa;
@@ -11354,6 +11359,7 @@ do_fault:
/* Tag the error as S2 for failed S1 PTW at S2 or ordinary S2. */
fi->stage2 = fi->s1ptw || (mmu_idx == ARMMMUIdx_Stage2 ||
mmu_idx == ARMMMUIdx_Stage2_S);
+ fi->s1ns = mmu_idx == ARMMMUIdx_Stage2;
return true;
}
diff --git a/target/arm/internals.h b/target/arm/internals.h
index 5205e3ad8d..c1fc679c18 100644
--- a/target/arm/internals.h
+++ b/target/arm/internals.h
@@ -593,6 +593,7 @@ typedef enum ARMFaultType {
* @s2addr: Address that caused a fault at stage 2
* @stage2: True if we faulted at stage 2
* @s1ptw: True if we faulted at stage 2 while doing a stage 1 page-table walk
+ * @s1ns: True if we faulted on a non-secure IPA while in secure state
* @ea: True if we should set the EA (external abort type) bit in syndrome
*/
typedef struct ARMMMUFaultInfo ARMMMUFaultInfo;
@@ -603,6 +604,7 @@ struct ARMMMUFaultInfo {
int domain;
bool stage2;
bool s1ptw;
+ bool s1ns;
bool ea;
};
diff --git a/target/arm/tlb_helper.c b/target/arm/tlb_helper.c
index b35dc8a011..df85079d9f 100644
--- a/target/arm/tlb_helper.c
+++ b/target/arm/tlb_helper.c
@@ -63,6 +63,9 @@ static void QEMU_NORETURN arm_deliver_fault(ARMCPU *cpu, vaddr addr,
if (fi->stage2) {
target_el = 2;
env->cp15.hpfar_el2 = extract64(fi->s2addr, 12, 47) << 4;
+ if (arm_is_secure_below_el3(env) && fi->s1ns) {
+ env->cp15.hpfar_el2 |= HPFAR_NS;
+ }
}
same_el = (arm_current_el(env) == target_el);
--
2.29.2
^ permalink raw reply related [flat|nested] 26+ messages in thread
* [PATCH 15/17] target/arm: add ARMv8.4-SEL2 extension
2020-11-23 8:01 [PATCHv3 00/17] ARMv8.4 Secure EL2 Rémi Denis-Courmont
` (13 preceding siblings ...)
2020-11-23 8:02 ` [PATCH 14/17] target/arm: set HPFAR_EL2.NS on secure stage 2 faults remi.denis.courmont
@ 2020-11-23 8:02 ` remi.denis.courmont
2020-11-23 8:02 ` [PATCH 16/17] target/arm: enable Secure EL2 in max CPU remi.denis.courmont
` (2 subsequent siblings)
17 siblings, 0 replies; 26+ messages in thread
From: remi.denis.courmont @ 2020-11-23 8:02 UTC (permalink / raw)
To: qemu-arm; +Cc: qemu-devel
From: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
This adds handling for the SCR_EL3.EEL2 bit.
A translation block flag is added in A32 mode to route exceptions
correctly from AArch32 S-EL1 to (AArch64) S-EL2.
Signed-off-by: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
target/arm/cpu.c | 2 +-
target/arm/cpu.h | 11 ++++++++---
target/arm/helper.c | 22 +++++++++++++++++++---
target/arm/translate.c | 6 ++++--
target/arm/translate.h | 1 +
5 files changed, 33 insertions(+), 9 deletions(-)
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index 48b34080ce..5bfffd5fe8 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -476,7 +476,7 @@ static inline bool arm_excp_unmasked(CPUState *cs, unsigned int excp_idx,
* masked from Secure state. The HCR and SCR settings
* don't affect the masking logic, only the interrupt routing.
*/
- if (target_el == 3 || !secure) {
+ if (target_el == 3 || !secure || (env->cp15.scr_el3 & SCR_EEL2)) {
unmasked = true;
}
} else {
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index 955f5c34d0..464e600a44 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -2062,7 +2062,10 @@ static inline bool arm_is_secure(CPUARMState *env)
static inline bool arm_is_el2_enabled(CPUARMState *env)
{
if (arm_feature(env, ARM_FEATURE_EL2)) {
- return !arm_is_secure_below_el3(env);
+ if (arm_is_secure_below_el3(env)) {
+ return (env->cp15.scr_el3 & SCR_EEL2) != 0;
+ }
+ return true;
}
return false;
}
@@ -2109,7 +2112,8 @@ static inline bool arm_el_is_aa64(CPUARMState *env, int el)
return aa64;
}
- if (arm_feature(env, ARM_FEATURE_EL3)) {
+ if (arm_feature(env, ARM_FEATURE_EL3) &&
+ ((env->cp15.scr_el3 & SCR_NS) || !(env->cp15.scr_el3 & SCR_EEL2))) {
aa64 = aa64 && (env->cp15.scr_el3 & SCR_RW);
}
@@ -3265,7 +3269,7 @@ typedef ARMCPU ArchCPU;
* We put flags which are shared between 32 and 64 bit mode at the top
* of the word, and flags which apply to only one mode at the bottom.
*
- * 31 20 18 14 9 0
+ * 31 20 19 14 9 0
* +--------------+-----+-----+----------+--------------+
* | | | TBFLAG_A32 | |
* | | +-----+----------+ TBFLAG_AM32 |
@@ -3314,6 +3318,7 @@ FIELD(TBFLAG_A32, HSTR_ACTIVE, 16, 1)
* the same thing as the current security state of the processor!
*/
FIELD(TBFLAG_A32, NS, 17, 1)
+FIELD(TBFLAG_A32, EEL2, 18, 1)
/*
* Bit usage when in AArch32 state, for M-profile only.
diff --git a/target/arm/helper.c b/target/arm/helper.c
index 86bf0548d9..af43783339 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -532,6 +532,9 @@ static CPAccessResult access_trap_aa32s_el1(CPUARMState *env,
return CP_ACCESS_OK;
}
if (arm_is_secure_below_el3(env)) {
+ if (env->cp15.scr_el3 & SCR_EEL2) {
+ return CP_ACCESS_TRAP_EL2;
+ }
return CP_ACCESS_TRAP_EL3;
}
/* This will be EL1 NS and EL2 NS, which just UNDEF */
@@ -2029,6 +2032,9 @@ static void scr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value)
if (cpu_isar_feature(aa64_pauth, cpu)) {
valid_mask |= SCR_API | SCR_APK;
}
+ if (cpu_isar_feature(aa64_sel2, cpu)) {
+ valid_mask |= SCR_EEL2;
+ }
if (cpu_isar_feature(aa64_mte, cpu)) {
valid_mask |= SCR_ATA;
}
@@ -3387,13 +3393,16 @@ static CPAccessResult ats_access(CPUARMState *env, const ARMCPRegInfo *ri,
bool isread)
{
if (ri->opc2 & 4) {
- /* The ATS12NSO* operations must trap to EL3 if executed in
+ /* The ATS12NSO* operations must trap to EL3 or EL2 if executed in
* Secure EL1 (which can only happen if EL3 is AArch64).
* They are simply UNDEF if executed from NS EL1.
* They function normally from EL2 or EL3.
*/
if (arm_current_el(env) == 1) {
if (arm_is_secure_below_el3(env)) {
+ if (env->cp15.scr_el3 & SCR_EEL2) {
+ return CP_ACCESS_TRAP_UNCATEGORIZED_EL2;
+ }
return CP_ACCESS_TRAP_UNCATEGORIZED_EL3;
}
return CP_ACCESS_TRAP_UNCATEGORIZED;
@@ -3656,7 +3665,8 @@ static void ats1h_write(CPUARMState *env, const ARMCPRegInfo *ri,
static CPAccessResult at_s1e2_access(CPUARMState *env, const ARMCPRegInfo *ri,
bool isread)
{
- if (arm_current_el(env) == 3 && !(env->cp15.scr_el3 & SCR_NS)) {
+ if (arm_current_el(env) == 3 &&
+ !(env->cp15.scr_el3 & (SCR_NS | SCR_EEL2))) {
return CP_ACCESS_TRAP;
}
return CP_ACCESS_OK;
@@ -5755,12 +5765,15 @@ static CPAccessResult nsacr_access(CPUARMState *env, const ARMCPRegInfo *ri,
bool isread)
{
/* The NSACR is RW at EL3, and RO for NS EL1 and NS EL2.
- * At Secure EL1 it traps to EL3.
+ * At Secure EL1 it traps to EL3 or EL2.
*/
if (arm_current_el(env) == 3) {
return CP_ACCESS_OK;
}
if (arm_is_secure_below_el3(env)) {
+ if (env->cp15.scr_el3 & SCR_EEL2) {
+ return CP_ACCESS_TRAP_EL2;
+ }
return CP_ACCESS_TRAP_EL3;
}
/* Accesses from EL1 NS and EL2 NS are UNDEF for write but allow reads. */
@@ -12898,6 +12911,9 @@ static uint32_t rebuild_hflags_common_32(CPUARMState *env, int fp_el,
flags = FIELD_DP32(flags, TBFLAG_ANY, BE_DATA, 1);
}
flags = FIELD_DP32(flags, TBFLAG_A32, NS, !access_secure_reg(env));
+ if (arm_is_secure_below_el3(env) && (env->cp15.scr_el3 & SCR_EEL2)) {
+ flags = FIELD_DP32(flags, TBFLAG_A32, EEL2, 1);
+ }
return rebuild_hflags_common(env, fp_el, mmu_idx, flags);
}
diff --git a/target/arm/translate.c b/target/arm/translate.c
index 6d04ca3a8a..4e93cfeeba 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -2780,9 +2780,10 @@ static bool msr_banked_access_decode(DisasContext *s, int r, int sysm, int rn,
}
if (s->current_el == 1) {
/* If we're in Secure EL1 (which implies that EL3 is AArch64)
- * then accesses to Mon registers trap to EL3
+ * then accesses to Mon registers trap to Secure EL2 if it exists
+ * otherwise EL3.
*/
- exc_target = 3;
+ exc_target = s->sel2 ? 2 : 3;
goto undef;
}
break;
@@ -8800,6 +8801,7 @@ static void arm_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cs)
dc->sctlr_b = FIELD_EX32(tb_flags, TBFLAG_A32, SCTLR_B);
dc->hstr_active = FIELD_EX32(tb_flags, TBFLAG_A32, HSTR_ACTIVE);
dc->ns = FIELD_EX32(tb_flags, TBFLAG_A32, NS);
+ dc->sel2 = FIELD_EX32(tb_flags, TBFLAG_A32, EEL2);
dc->vfp_enabled = FIELD_EX32(tb_flags, TBFLAG_A32, VFPEN);
if (arm_feature(env, ARM_FEATURE_XSCALE)) {
dc->c15_cpar = FIELD_EX32(tb_flags, TBFLAG_A32, XSCALE_CPAR);
diff --git a/target/arm/translate.h b/target/arm/translate.h
index 423b0e08df..bf3624791b 100644
--- a/target/arm/translate.h
+++ b/target/arm/translate.h
@@ -32,6 +32,7 @@ typedef struct DisasContext {
uint8_t tbid; /* TBI1|TBI0 for data */
uint8_t tcma; /* TCMA1|TCMA0 for MTE */
bool ns; /* Use non-secure CPREG bank on access */
+ bool sel2; /* Secure EL2 enabled (only used in AArch32) */
int fp_excp_el; /* FP exception EL or 0 if enabled */
int sve_excp_el; /* SVE exception EL or 0 if enabled */
int sve_len; /* SVE vector length in bytes */
--
2.29.2
^ permalink raw reply related [flat|nested] 26+ messages in thread
* [PATCH 16/17] target/arm: enable Secure EL2 in max CPU
2020-11-23 8:01 [PATCHv3 00/17] ARMv8.4 Secure EL2 Rémi Denis-Courmont
` (14 preceding siblings ...)
2020-11-23 8:02 ` [PATCH 15/17] target/arm: add ARMv8.4-SEL2 extension remi.denis.courmont
@ 2020-11-23 8:02 ` remi.denis.courmont
2020-11-23 8:02 ` [PATCH 17/17] target/arm: refactor vae1_tlbmask() remi.denis.courmont
2020-12-01 16:54 ` [PATCHv3 00/17] ARMv8.4 Secure EL2 Peter Maydell
17 siblings, 0 replies; 26+ messages in thread
From: remi.denis.courmont @ 2020-11-23 8:02 UTC (permalink / raw)
To: qemu-arm; +Cc: qemu-devel
From: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
Signed-off-by: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
target/arm/cpu64.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
index 649213082f..8c3749268e 100644
--- a/target/arm/cpu64.c
+++ b/target/arm/cpu64.c
@@ -641,6 +641,7 @@ static void aarch64_max_initfn(Object *obj)
t = FIELD_DP64(t, ID_AA64PFR0, SVE, 1);
t = FIELD_DP64(t, ID_AA64PFR0, FP, 1);
t = FIELD_DP64(t, ID_AA64PFR0, ADVSIMD, 1);
+ t = FIELD_DP64(t, ID_AA64PFR0, SEL2, 1);
cpu->isar.id_aa64pfr0 = t;
t = cpu->isar.id_aa64pfr1;
--
2.29.2
^ permalink raw reply related [flat|nested] 26+ messages in thread
* [PATCH 17/17] target/arm: refactor vae1_tlbmask()
2020-11-23 8:01 [PATCHv3 00/17] ARMv8.4 Secure EL2 Rémi Denis-Courmont
` (15 preceding siblings ...)
2020-11-23 8:02 ` [PATCH 16/17] target/arm: enable Secure EL2 in max CPU remi.denis.courmont
@ 2020-11-23 8:02 ` remi.denis.courmont
2020-12-01 16:54 ` [PATCHv3 00/17] ARMv8.4 Secure EL2 Peter Maydell
17 siblings, 0 replies; 26+ messages in thread
From: remi.denis.courmont @ 2020-11-23 8:02 UTC (permalink / raw)
To: qemu-arm; +Cc: qemu-devel
From: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
Signed-off-by: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
---
target/arm/helper.c | 25 +++++++++++--------------
1 file changed, 11 insertions(+), 14 deletions(-)
diff --git a/target/arm/helper.c b/target/arm/helper.c
index af43783339..595080d137 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -4469,26 +4469,23 @@ static CPAccessResult aa64_cacheop_pou_access(CPUARMState *env,
static int vae1_tlbmask(CPUARMState *env)
{
uint64_t hcr = arm_hcr_el2_eff(env);
+ uint16_t mask;
if ((hcr & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)) {
- uint16_t mask = ARMMMUIdxBit_E20_2 |
- ARMMMUIdxBit_E20_2_PAN |
- ARMMMUIdxBit_E20_0;
-
- if (arm_is_secure_below_el3(env)) {
- mask >>= ARM_MMU_IDX_A_NS;
- }
-
- return mask;
- } else if (arm_is_secure_below_el3(env)) {
- return ARMMMUIdxBit_SE10_1 |
- ARMMMUIdxBit_SE10_1_PAN |
- ARMMMUIdxBit_SE10_0;
+ mask = ARMMMUIdxBit_E20_2 |
+ ARMMMUIdxBit_E20_2_PAN |
+ ARMMMUIdxBit_E20_0;
} else {
- return ARMMMUIdxBit_E10_1 |
+ mask = ARMMMUIdxBit_E10_1 |
ARMMMUIdxBit_E10_1_PAN |
ARMMMUIdxBit_E10_0;
}
+
+ if (arm_is_secure_below_el3(env)) {
+ mask >>= ARM_MMU_IDX_A_NS;
+ }
+
+ return mask;
}
/* Return 56 if TBI is enabled, 64 otherwise. */
--
2.29.2
^ permalink raw reply related [flat|nested] 26+ messages in thread
* Re: [PATCHv3 00/17] ARMv8.4 Secure EL2
2020-11-23 8:01 [PATCHv3 00/17] ARMv8.4 Secure EL2 Rémi Denis-Courmont
` (16 preceding siblings ...)
2020-11-23 8:02 ` [PATCH 17/17] target/arm: refactor vae1_tlbmask() remi.denis.courmont
@ 2020-12-01 16:54 ` Peter Maydell
2020-12-01 17:20 ` Rémi Denis-Courmont
17 siblings, 1 reply; 26+ messages in thread
From: Peter Maydell @ 2020-12-01 16:54 UTC (permalink / raw)
To: Rémi Denis-Courmont; +Cc: qemu-arm, QEMU Developers
On Mon, 23 Nov 2020 at 08:02, Rémi Denis-Courmont
<remi.denis.courmont@huawei.com> wrote:
>
> The following changes since commit 8cc30eb1400fc01f2b139cdd3dc524f8b84dbe07:
>
> Merge remote-tracking branch 'remotes/mcayland/tags/qemu-sparc-20201122' into staging (2020-11-22 15:02:52 +0000)
>
> follow.
>
> Changes since version 2:
> - Don't set HPFAR.NS in AT instruction in NS state.
>
This series seems to break the 'make check-acceptance' tests. Specifically
the vexpress-a9 image fails to boot:
(20/40) tests/acceptance/boot_linux_console.py:BootLinuxConsole.test_arm_vexpressa9:
INTERRUPTED: Test interrupted by SIGTERM\nRunner error occurred:
Timeout reached\nOriginal status: ERROR\n{'name':
'20-tests/acceptance/boot_linux_console.py:BootLinuxConsole.test_arm_vexpressa9',
'logdir': '/home/petmay01/linaro/qemu-from-laptop/qemu/build/arm-clang/tes...
(90.23 s)
The log shows the guest kernel booting partway and then hanging.
thanks
-- PMM
^ permalink raw reply [flat|nested] 26+ messages in thread
* Re: [PATCHv3 00/17] ARMv8.4 Secure EL2
2020-12-01 16:54 ` [PATCHv3 00/17] ARMv8.4 Secure EL2 Peter Maydell
@ 2020-12-01 17:20 ` Rémi Denis-Courmont
2020-12-01 18:23 ` Peter Maydell
0 siblings, 1 reply; 26+ messages in thread
From: Rémi Denis-Courmont @ 2020-12-01 17:20 UTC (permalink / raw)
To: qemu-arm; +Cc: QEMU Developers
Le tiistaina 1. joulukuuta 2020, 18.54.36 EET Peter Maydell a écrit :
> On Mon, 23 Nov 2020 at 08:02, Rémi Denis-Courmont
>
> <remi.denis.courmont@huawei.com> wrote:
> > The following changes since commit
8cc30eb1400fc01f2b139cdd3dc524f8b84dbe07:
> > Merge remote-tracking branch 'remotes/mcayland/tags/qemu-sparc-20201122'
> > into staging (2020-11-22 15:02:52 +0000)>
> > follow.
> >
> > Changes since version 2:
> > - Don't set HPFAR.NS in AT instruction in NS state.
>
> This series seems to break the 'make check-acceptance' tests. Specifically
> the vexpress-a9 image fails to boot:
> (20/40)
> tests/acceptance/boot_linux_console.py:BootLinuxConsole.test_arm_vexpressa9
> : INTERRUPTED: Test interrupted by SIGTERM\nRunner error occurred:
> Timeout reached\nOriginal status: ERROR\n{'name':
> '20-tests/acceptance/boot_linux_console.py:BootLinuxConsole.test_arm_vexpres
> sa9', 'logdir':
> '/home/petmay01/linaro/qemu-from-laptop/qemu/build/arm-clang/tes... (90.23
> s)
The base tests fail without the patchset seem to assume an US American locale,
which is frankly infuriatingly culturally insensitive.
As for the acceptance tests fail equally early without the patchset with a
completely helpless diagnostic about unresolved references. Wiki does not help
either.
So there you go: cannot reproduce.
--
Rémi Denis-Courmont
^ permalink raw reply [flat|nested] 26+ messages in thread
* Re: [PATCHv3 00/17] ARMv8.4 Secure EL2
2020-12-01 17:20 ` Rémi Denis-Courmont
@ 2020-12-01 18:23 ` Peter Maydell
2020-12-01 18:37 ` Rémi Denis-Courmont
0 siblings, 1 reply; 26+ messages in thread
From: Peter Maydell @ 2020-12-01 18:23 UTC (permalink / raw)
To: Rémi Denis-Courmont
Cc: qemu-arm, QEMU Developers, Philippe Mathieu-Daudé
On Tue, 1 Dec 2020 at 17:42, Rémi Denis-Courmont
<remi.denis.courmont@huawei.com> wrote:
>
> Le tiistaina 1. joulukuuta 2020, 18.54.36 EET Peter Maydell a écrit :
> > On Mon, 23 Nov 2020 at 08:02, Rémi Denis-Courmont
> >
> > <remi.denis.courmont@huawei.com> wrote:
> > > The following changes since commit
> 8cc30eb1400fc01f2b139cdd3dc524f8b84dbe07:
> > > Merge remote-tracking branch 'remotes/mcayland/tags/qemu-sparc-20201122'
> > > into staging (2020-11-22 15:02:52 +0000)>
> > > follow.
> > >
> > > Changes since version 2:
> > > - Don't set HPFAR.NS in AT instruction in NS state.
> >
> > This series seems to break the 'make check-acceptance' tests. Specifically
> > the vexpress-a9 image fails to boot:
> > (20/40)
> > tests/acceptance/boot_linux_console.py:BootLinuxConsole.test_arm_vexpressa9
> > : INTERRUPTED: Test interrupted by SIGTERM\nRunner error occurred:
> > Timeout reached\nOriginal status: ERROR\n{'name':
> > '20-tests/acceptance/boot_linux_console.py:BootLinuxConsole.test_arm_vexpres
> > sa9', 'logdir':
> > '/home/petmay01/linaro/qemu-from-laptop/qemu/build/arm-clang/tes... (90.23
> > s)
>
> The base tests fail without the patchset seem to assume an US American locale,
> which is frankly infuriatingly culturally insensitive.
I run them with en_GB.UTF-8, which works fine for me, but it's a bug
in the test suite if something's locale dependent and not ensuring
it is set correctly.
> As for the acceptance tests fail equally early without the patchset with a
> completely helpless diagnostic about unresolved references. Wiki does not help
> either.
I just run "make -C my-build-dir check-acceptance"; I don't know anything
about the internals. It would help if you quoted the error messages
you see.
FWIW, I also see a hang on a manual run of a different vexpress-a9
kernel, so the bug is not specific to the check-acceptance tests.
thanks
-- PMM
^ permalink raw reply [flat|nested] 26+ messages in thread
* Re: [PATCHv3 00/17] ARMv8.4 Secure EL2
2020-12-01 18:23 ` Peter Maydell
@ 2020-12-01 18:37 ` Rémi Denis-Courmont
2020-12-08 14:11 ` Alex Bennée
0 siblings, 1 reply; 26+ messages in thread
From: Rémi Denis-Courmont @ 2020-12-01 18:37 UTC (permalink / raw)
To: qemu-arm, QEMU Developers; +Cc: Peter Maydell, Philippe Mathieu-Daudé
Hi,
Le tiistaina 1. joulukuuta 2020, 20.23.46 EET Peter Maydell a écrit :
> > The base tests fail without the patchset seem to assume an US American
> > locale, which is frankly infuriatingly culturally insensitive.
>
> I run them with en_GB.UTF-8, which works fine for me, but it's a bug
> in the test suite if something's locale dependent and not ensuring
> it is set correctly.
For a start, it seems to be barfing on strsignal() localisation by the shell,
printing French instead of "Killed" on SIGKILL.
% locale
LANG=fr_FR.UTF-8
LANGUAGE=fr:en_GB:fi
LC_CTYPE="fi_FI.UTF-8"
...
> > As for the acceptance tests fail equally early without the patchset with a
> > completely helpless diagnostic about unresolved references. Wiki does not
> > help either.
>
> I just run "make -C my-build-dir check-acceptance"; I don't know anything
> about the internals. It would help if you quoted the error messages
> you see.
AVOCADO tests/acceptance
Unable to resolve reference(s) 'tests/acceptance' with plugins(s) 'file',
'tap', 'external', try running 'avocado list -V tests/acceptance' to see the
details.
make: *** [/home/remi/dev/qemu/tests/Makefile.include:125 : check-acceptance]
Erreur 2
% avocado list -V tests/acceptance
bash: avocado : commande introuvable
% tests/venv/bin/avocado list -V tests/acceptance
usage: avocado list [-h] [--loaders [LIST.LOADERS ...]]
Wiki implies that dependencies are automatically installed, but I guess not?
Br,
--
Rémi Denis-Courmont
^ permalink raw reply [flat|nested] 26+ messages in thread
* Re: [PATCHv3 00/17] ARMv8.4 Secure EL2
2020-12-01 18:37 ` Rémi Denis-Courmont
@ 2020-12-08 14:11 ` Alex Bennée
2020-12-18 9:45 ` Rémi Denis-Courmont
0 siblings, 1 reply; 26+ messages in thread
From: Alex Bennée @ 2020-12-08 14:11 UTC (permalink / raw)
To: Rémi Denis-Courmont
Cc: Peter Maydell, qemu-arm, QEMU Developers, Philippe Mathieu-Daudé
Rémi Denis-Courmont <remi.denis.courmont@huawei.com> writes:
> Hi,
>
> Le tiistaina 1. joulukuuta 2020, 20.23.46 EET Peter Maydell a écrit :
>> > The base tests fail without the patchset seem to assume an US American
>> > locale, which is frankly infuriatingly culturally insensitive.
>>
>> I run them with en_GB.UTF-8, which works fine for me, but it's a bug
>> in the test suite if something's locale dependent and not ensuring
>> it is set correctly.
>
> For a start, it seems to be barfing on strsignal() localisation by the shell,
> printing French instead of "Killed" on SIGKILL.
>
> % locale
> LANG=fr_FR.UTF-8
> LANGUAGE=fr:en_GB:fi
> LC_CTYPE="fi_FI.UTF-8"
> ...
>
>> > As for the acceptance tests fail equally early without the patchset with a
>> > completely helpless diagnostic about unresolved references. Wiki does not
>> > help either.
>>
>> I just run "make -C my-build-dir check-acceptance"; I don't know anything
>> about the internals. It would help if you quoted the error messages
>> you see.
>
> AVOCADO tests/acceptance
> Unable to resolve reference(s) 'tests/acceptance' with plugins(s) 'file',
> 'tap', 'external', try running 'avocado list -V tests/acceptance' to see the
> details.
> make: *** [/home/remi/dev/qemu/tests/Makefile.include:125 : check-acceptance]
> Erreur 2
>
> % avocado list -V tests/acceptance
> bash: avocado : commande introuvable
>
> % tests/venv/bin/avocado list -V tests/acceptance
> usage: avocado list [-h] [--loaders [LIST.LOADERS ...]]
>
> Wiki implies that dependencies are automatically installed, but I
> guess not?
They should be in the venv that is built when you run the test the first
time. Running the above command without the -V which it doesn't
recognise gives me a list:
14:12:25 [alex@zen:~/l/q/b/all] xen/guest-loader-and-arm-build-cleanups-v2|✚3…(+5/-5) + ./tests/venv/bin/avocado list tests/acceptance/ | head -n 10
INSTRUMENTED tests/acceptance/boot_linux.py:BootLinuxX8664.test_pc_i440fx_tcg
INSTRUMENTED tests/acceptance/boot_linux.py:BootLinuxX8664.test_pc_i440fx_kvm
INSTRUMENTED tests/acceptance/boot_linux.py:BootLinuxX8664.test_pc_q35_tcg
INSTRUMENTED tests/acceptance/boot_linux.py:BootLinuxX8664.test_pc_q35_kvm
INSTRUMENTED tests/acceptance/boot_linux.py:BootLinuxAarch64.test_virt_tcg
INSTRUMENTED tests/acceptance/boot_linux.py:BootLinuxAarch64.test_virt_kvm_gicv2
INSTRUMENTED tests/acceptance/boot_linux.py:BootLinuxAarch64.test_virt_kvm_gicv3
INSTRUMENTED tests/acceptance/boot_linux.py:BootLinuxPPC64.test_pseries_tcg
INSTRUMENTED tests/acceptance/boot_linux.py:BootLinuxS390X.test_s390_ccw_virtio_tcg
INSTRUMENTED tests/acceptance/boot_linux_console.py:BootLinuxConsole.test_x86_64_pc
Exception ignored in: <_io.TextIOWrapper name='<stdout>' mode='w' encoding='UTF-8'>
BrokenPipeError: [Errno 32] Broken pipe
I wonder are you running an in-tree build?
>
> Br,
--
Alex Bennée
^ permalink raw reply [flat|nested] 26+ messages in thread
* Re: [PATCHv3 00/17] ARMv8.4 Secure EL2
2020-12-08 14:11 ` Alex Bennée
@ 2020-12-18 9:45 ` Rémi Denis-Courmont
0 siblings, 0 replies; 26+ messages in thread
From: Rémi Denis-Courmont @ 2020-12-18 9:45 UTC (permalink / raw)
To: qemu-arm
Cc: Peter Maydell, qemu-arm, Alex Bennée, QEMU Developers,
Philippe Mathieu-Daudé
Le tiistaina 8. joulukuuta 2020, 16.11.15 EET Alex Bennée a écrit :
> > Wiki implies that dependencies are automatically installed, but I
> > guess not?
>
> They should be in the venv that is built when you run the test the first
> time. Running the above command without the -V which it doesn't
> recognise gives me a list:
>
> 14:12:25 [alex@zen:~/l/q/b/all]
> xen/guest-loader-and-arm-build-cleanups-v2|✚3…(+5/-5) +
> ./tests/venv/bin/avocado list tests/acceptance/ | head -n 10 INSTRUMENTED
> tests/acceptance/boot_linux.py:BootLinuxX8664.test_pc_i440fx_tcg
> INSTRUMENTED
> tests/acceptance/boot_linux.py:BootLinuxX8664.test_pc_i440fx_kvm
> INSTRUMENTED tests/acceptance/boot_linux.py:BootLinuxX8664.test_pc_q35_tcg
> INSTRUMENTED tests/acceptance/boot_linux.py:BootLinuxX8664.test_pc_q35_kvm
> INSTRUMENTED tests/acceptance/boot_linux.py:BootLinuxAarch64.test_virt_tcg
> INSTRUMENTED
> tests/acceptance/boot_linux.py:BootLinuxAarch64.test_virt_kvm_gicv2
> INSTRUMENTED
> tests/acceptance/boot_linux.py:BootLinuxAarch64.test_virt_kvm_gicv3
> INSTRUMENTED tests/acceptance/boot_linux.py:BootLinuxPPC64.test_pseries_tcg
> INSTRUMENTED
> tests/acceptance/boot_linux.py:BootLinuxS390X.test_s390_ccw_virtio_tcg
> INSTRUMENTED
> tests/acceptance/boot_linux_console.py:BootLinuxConsole.test_x86_64_pc
> Exception ignored in: <_io.TextIOWrapper name='<stdout>' mode='w'
> encoding='UTF-8'> BrokenPipeError: [Errno 32] Broken pipe
>
> I wonder are you running an in-tree build?
Yes. I suppose somebody fixed something because I can run the test cases now
and pinpoint the failing change, though I've yet to debug it succesfully.
--
Rémi Denis-Courmont
^ permalink raw reply [flat|nested] 26+ messages in thread
* Re: [PATCH 10/17] target/arm: add ARMv8.4-SEL2 system registers
2020-11-09 14:10 ` [PATCH 10/17] target/arm: add ARMv8.4-SEL2 system registers remi.denis.courmont
@ 2020-11-13 21:27 ` Richard Henderson
0 siblings, 0 replies; 26+ messages in thread
From: Richard Henderson @ 2020-11-13 21:27 UTC (permalink / raw)
To: remi.denis.courmont, qemu-arm; +Cc: qemu-devel
On 11/9/20 6:10 AM, remi.denis.courmont@huawei.com wrote:
> From: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
>
> Signed-off-by: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
> ---
> target/arm/cpu.h | 2 ++
> target/arm/helper.c | 24 ++++++++++++++++++++++++
> 2 files changed, 26 insertions(+)
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
r~
^ permalink raw reply [flat|nested] 26+ messages in thread
* [PATCH 10/17] target/arm: add ARMv8.4-SEL2 system registers
2020-11-09 13:56 [PATCHv2 00/17] ARM Secure EL2 extension Rémi Denis-Courmont
@ 2020-11-09 14:10 ` remi.denis.courmont
2020-11-13 21:27 ` Richard Henderson
0 siblings, 1 reply; 26+ messages in thread
From: remi.denis.courmont @ 2020-11-09 14:10 UTC (permalink / raw)
To: qemu-arm; +Cc: qemu-devel
From: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
Signed-off-by: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
---
target/arm/cpu.h | 2 ++
target/arm/helper.c | 24 ++++++++++++++++++++++++
2 files changed, 26 insertions(+)
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index c7f17fc099..7a03869d26 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -323,9 +323,11 @@ typedef struct CPUARMState {
uint64_t ttbr1_el[4];
};
uint64_t vttbr_el2; /* Virtualization Translation Table Base. */
+ uint64_t vsttbr_el2; /* Secure Virtualization Translation Table. */
/* MMU translation table base control. */
TCR tcr_el[4];
TCR vtcr_el2; /* Virtualization Translation Control. */
+ TCR vstcr_el2; /* Secure Virtualization Translation Control. */
uint32_t c2_data; /* MPU data cacheable bits. */
uint32_t c2_insn; /* MPU instruction cacheable bits. */
union { /* MMU domain access control register
diff --git a/target/arm/helper.c b/target/arm/helper.c
index 3df007a5dc..2263715ba4 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -5721,6 +5721,27 @@ static const ARMCPRegInfo el2_v8_cp_reginfo[] = {
REGINFO_SENTINEL
};
+static CPAccessResult sel2_access(CPUARMState *env, const ARMCPRegInfo *ri,
+ bool isread)
+{
+ if (arm_current_el(env) == 3 || arm_is_secure_below_el3(env)) {
+ return CP_ACCESS_OK;
+ }
+ return CP_ACCESS_TRAP_UNCATEGORIZED;
+}
+
+static const ARMCPRegInfo el2_sec_cp_reginfo[] = {
+ { .name = "VSTTBR_EL2", .state = ARM_CP_STATE_AA64,
+ .opc0 = 3, .opc1 = 4, .crn = 2, .crm = 6, .opc2 = 0,
+ .access = PL2_RW, .accessfn = sel2_access,
+ .fieldoffset = offsetof(CPUARMState, cp15.vsttbr_el2) },
+ { .name = "VSTCR_EL2", .state = ARM_CP_STATE_AA64,
+ .opc0 = 3, .opc1 = 4, .crn = 2, .crm = 6, .opc2 = 2,
+ .access = PL2_RW, .accessfn = sel2_access,
+ .fieldoffset = offsetof(CPUARMState, cp15.vstcr_el2) },
+ REGINFO_SENTINEL
+};
+
static CPAccessResult nsacr_access(CPUARMState *env, const ARMCPRegInfo *ri,
bool isread)
{
@@ -7733,6 +7754,9 @@ void register_cp_regs_for_features(ARMCPU *cpu)
if (arm_feature(env, ARM_FEATURE_V8)) {
define_arm_cp_regs(cpu, el2_v8_cp_reginfo);
}
+ if (cpu_isar_feature(aa64_sel2, cpu)) {
+ define_arm_cp_regs(cpu, el2_sec_cp_reginfo);
+ }
/* RVBAR_EL2 is only implemented if EL2 is the highest EL */
if (!arm_feature(env, ARM_FEATURE_EL3)) {
ARMCPRegInfo rvbar = {
--
2.29.2
^ permalink raw reply related [flat|nested] 26+ messages in thread
end of thread, other threads:[~2020-12-18 9:48 UTC | newest]
Thread overview: 26+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-11-23 8:01 [PATCHv3 00/17] ARMv8.4 Secure EL2 Rémi Denis-Courmont
2020-11-23 8:02 ` [PATCH 01/17] target/arm: remove redundant tests remi.denis.courmont
2020-11-23 8:02 ` [PATCH 02/17] target/arm: add arm_is_el2_enabled() helper remi.denis.courmont
2020-11-23 8:02 ` [PATCH 03/17] target/arm: use arm_is_el2_enabled() where applicable remi.denis.courmont
2020-11-23 8:02 ` [PATCH 04/17] target/arm: use arm_hcr_el2_eff() " remi.denis.courmont
2020-11-23 8:02 ` [PATCH 05/17] target/arm: factor MDCR_EL2 common handling remi.denis.courmont
2020-11-23 8:02 ` [PATCH 06/17] target/arm: declare new AA64PFR0 bit-fields remi.denis.courmont
2020-11-23 8:02 ` [PATCH 07/17] target/arm: add 64-bit S-EL2 to EL exception table remi.denis.courmont
2020-11-23 8:02 ` [PATCH 08/17] target/arm: return the stage 2 index for stage 1 remi.denis.courmont
2020-11-23 8:02 ` [PATCH 09/17] target/arm: add MMU stage 1 for Secure EL2 remi.denis.courmont
2020-11-23 8:02 ` [PATCH 10/17] target/arm: add ARMv8.4-SEL2 system registers remi.denis.courmont
2020-11-23 8:02 ` [PATCH 11/17] target/arm: do S1_ptw_translate() before address space lookup remi.denis.courmont
2020-11-23 8:02 ` [PATCH 12/17] target/arm: secure stage 2 translation regime remi.denis.courmont
2020-11-23 8:02 ` [PATCH 13/17] target/arm: handle VMID change in secure state remi.denis.courmont
2020-11-23 8:02 ` [PATCH 14/17] target/arm: set HPFAR_EL2.NS on secure stage 2 faults remi.denis.courmont
2020-11-23 8:02 ` [PATCH 15/17] target/arm: add ARMv8.4-SEL2 extension remi.denis.courmont
2020-11-23 8:02 ` [PATCH 16/17] target/arm: enable Secure EL2 in max CPU remi.denis.courmont
2020-11-23 8:02 ` [PATCH 17/17] target/arm: refactor vae1_tlbmask() remi.denis.courmont
2020-12-01 16:54 ` [PATCHv3 00/17] ARMv8.4 Secure EL2 Peter Maydell
2020-12-01 17:20 ` Rémi Denis-Courmont
2020-12-01 18:23 ` Peter Maydell
2020-12-01 18:37 ` Rémi Denis-Courmont
2020-12-08 14:11 ` Alex Bennée
2020-12-18 9:45 ` Rémi Denis-Courmont
-- strict thread matches above, loose matches on Subject: below --
2020-11-09 13:56 [PATCHv2 00/17] ARM Secure EL2 extension Rémi Denis-Courmont
2020-11-09 14:10 ` [PATCH 10/17] target/arm: add ARMv8.4-SEL2 system registers remi.denis.courmont
2020-11-13 21:27 ` Richard Henderson
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