* [Qemu-devel] [PATCH v2 0/2] POWER9 TCG enablements - part12
@ 2017-01-13 9:23 Nikunj A Dadhania
2017-01-13 9:23 ` [Qemu-devel] [PATCH v2 1/2] target-ppc: Add xvtstdc[sp, dp] instructions Nikunj A Dadhania
` (2 more replies)
0 siblings, 3 replies; 5+ messages in thread
From: Nikunj A Dadhania @ 2017-01-13 9:23 UTC (permalink / raw)
To: qemu-ppc, david, rth; +Cc: qemu-devel, bharata, nikunj
This series contains 5 new instructions for POWER9 ISA3.0
VSX Scalar Test Data Class
VSX Vector Test Data Class
Changelog:
v1:
* Zero the match variable in the element loops
v0:
* Concise logic for identifying data class in Scalar/Vector
test data class instructions
Nikunj A Dadhania (2):
target-ppc: Add xvtstdc[sp,dp] instructions
target-ppc: Add xststdc[sp, dp, qp] instructions
target/ppc/fpu_helper.c | 90 +++++++++++++++++++++++++++++++++++++
target/ppc/helper.h | 5 +++
target/ppc/internal.h | 6 ++-
target/ppc/translate/vsx-impl.inc.c | 5 +++
target/ppc/translate/vsx-ops.inc.c | 12 +++++
5 files changed, 116 insertions(+), 2 deletions(-)
--
2.7.4
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Qemu-devel] [PATCH v2 1/2] target-ppc: Add xvtstdc[sp, dp] instructions
2017-01-13 9:23 [Qemu-devel] [PATCH v2 0/2] POWER9 TCG enablements - part12 Nikunj A Dadhania
@ 2017-01-13 9:23 ` Nikunj A Dadhania
2017-01-13 9:23 ` [Qemu-devel] [PATCH v2 2/2] target-ppc: Add xststdc[sp, dp, qp] instructions Nikunj A Dadhania
2017-01-24 6:47 ` [Qemu-devel] [PATCH v2 0/2] POWER9 TCG enablements - part12 Nikunj A Dadhania
2 siblings, 0 replies; 5+ messages in thread
From: Nikunj A Dadhania @ 2017-01-13 9:23 UTC (permalink / raw)
To: qemu-ppc, david, rth; +Cc: qemu-devel, bharata, nikunj
xvtstdcsp: VSX Vector Test Data Class Single-Precision
xvtstdcdp: VSX Vector Test Data Class Double-Precision
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
---
target/ppc/fpu_helper.c | 40 +++++++++++++++++++++++++++++++++++++
target/ppc/helper.h | 2 ++
target/ppc/internal.h | 5 +++--
target/ppc/translate/vsx-impl.inc.c | 2 ++
target/ppc/translate/vsx-ops.inc.c | 8 ++++++++
5 files changed, 55 insertions(+), 2 deletions(-)
diff --git a/target/ppc/fpu_helper.c b/target/ppc/fpu_helper.c
index ffcf9ca..45bc93c 100644
--- a/target/ppc/fpu_helper.c
+++ b/target/ppc/fpu_helper.c
@@ -3187,3 +3187,43 @@ void helper_xvxsigsp(CPUPPCState *env, uint32_t opcode)
}
putVSR(xT(opcode), &xt, env);
}
+
+/* VSX_TEST_DC - VSX floating point test data class
+ * op - instruction mnemonic
+ * nels - number of elements (1, 2 or 4)
+ * xbn - VSR register number
+ * tp - type (float32 or float64)
+ * fld - vsr_t field (VsrD(*) or VsrW(*))
+ * tfld - target vsr_t field (VsrD(*) or VsrW(*))
+ * fld_max - target field max
+ */
+#define VSX_TEST_DC(op, nels, xbn, tp, fld, tfld, fld_max) \
+void helper_##op(CPUPPCState *env, uint32_t opcode) \
+{ \
+ ppc_vsr_t xt, xb; \
+ uint32_t i, sign, dcmx; \
+ uint32_t match = 0; \
+ \
+ getVSR(xbn, &xb, env); \
+ memset(&xt, 0, sizeof(xt)); \
+ dcmx = DCMX_XV(opcode); \
+ \
+ for (i = 0; i < nels; i++) { \
+ sign = tp##_is_neg(xb.fld); \
+ if (tp##_is_any_nan(xb.fld)) { \
+ match = extract32(dcmx, 6, 1); \
+ } else if (tp##_is_infinity(xb.fld)) { \
+ match = extract32(dcmx, 4 + !sign, 1); \
+ } else if (tp##_is_zero(xb.fld)) { \
+ match = extract32(dcmx, 2 + !sign, 1); \
+ } else if (tp##_is_zero_or_denormal(xb.fld)) { \
+ match = extract32(dcmx, 0 + !sign, 1); \
+ } \
+ xt.tfld = match ? fld_max : 0; \
+ match = 0; \
+ } \
+ putVSR(xT(opcode), &xt, env); \
+}
+
+VSX_TEST_DC(xvtstdcdp, 2, xB(opcode), float64, VsrD(i), VsrD(i), UINT64_MAX)
+VSX_TEST_DC(xvtstdcsp, 4, xB(opcode), float32, VsrW(i), VsrW(i), UINT32_MAX)
diff --git a/target/ppc/helper.h b/target/ppc/helper.h
index 9d4ed08..165e4a5 100644
--- a/target/ppc/helper.h
+++ b/target/ppc/helper.h
@@ -546,6 +546,8 @@ DEF_HELPER_2(xvcvsxdsp, void, env, i32)
DEF_HELPER_2(xvcvuxdsp, void, env, i32)
DEF_HELPER_2(xvcvsxwsp, void, env, i32)
DEF_HELPER_2(xvcvuxwsp, void, env, i32)
+DEF_HELPER_2(xvtstdcsp, void, env, i32)
+DEF_HELPER_2(xvtstdcdp, void, env, i32)
DEF_HELPER_2(xvrspi, void, env, i32)
DEF_HELPER_2(xvrspic, void, env, i32)
DEF_HELPER_2(xvrspim, void, env, i32)
diff --git a/target/ppc/internal.h b/target/ppc/internal.h
index c22d74e..4c3811a 100644
--- a/target/ppc/internal.h
+++ b/target/ppc/internal.h
@@ -68,7 +68,7 @@ static inline uint32_t name(uint32_t opcode) \
((opcode >> (shift2)) & ((1 << (nb2)) - 1)); \
}
-#define EXTRACT_HELPER_DXFORM(name, \
+#define EXTRACT_HELPER_SPLIT_3(name, \
d0_bits, shift_op_d0, shift_d0, \
d1_bits, shift_op_d1, shift_d1, \
d2_bits, shift_op_d2, shift_d2) \
@@ -156,7 +156,7 @@ EXTRACT_HELPER(FPFLM, 17, 8);
EXTRACT_HELPER(FPW, 16, 1);
/* addpcis */
-EXTRACT_HELPER_DXFORM(DX, 10, 6, 6, 5, 16, 1, 1, 0, 0)
+EXTRACT_HELPER_SPLIT_3(DX, 10, 6, 6, 5, 16, 1, 1, 0, 0)
#if defined(TARGET_PPC64)
/* darn */
EXTRACT_HELPER(L, 16, 2);
@@ -198,6 +198,7 @@ EXTRACT_HELPER(UIM, 16, 2);
EXTRACT_HELPER(SHW, 8, 2);
EXTRACT_HELPER(SP, 19, 2);
EXTRACT_HELPER(IMM8, 11, 8);
+EXTRACT_HELPER_SPLIT_3(DCMX_XV, 5, 16, 0, 1, 2, 5, 1, 6, 6);
typedef union _ppc_vsr_t {
uint8_t u8[16];
diff --git a/target/ppc/translate/vsx-impl.inc.c b/target/ppc/translate/vsx-impl.inc.c
index 9bcc5af..adb6fc7 100644
--- a/target/ppc/translate/vsx-impl.inc.c
+++ b/target/ppc/translate/vsx-impl.inc.c
@@ -928,6 +928,8 @@ GEN_VSX_HELPER_2(xvrspic, 0x16, 0x0A, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xvrspim, 0x12, 0x0B, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xvrspip, 0x12, 0x0A, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xvrspiz, 0x12, 0x09, 0, PPC2_VSX)
+GEN_VSX_HELPER_2(xvtstdcsp, 0x14, 0x1A, 0, PPC2_VSX)
+GEN_VSX_HELPER_2(xvtstdcdp, 0x14, 0x1E, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xxperm, 0x08, 0x03, 0, PPC2_ISA300)
GEN_VSX_HELPER_2(xxpermr, 0x08, 0x07, 0, PPC2_ISA300)
diff --git a/target/ppc/translate/vsx-ops.inc.c b/target/ppc/translate/vsx-ops.inc.c
index ee74312..6dd5d72 100644
--- a/target/ppc/translate/vsx-ops.inc.c
+++ b/target/ppc/translate/vsx-ops.inc.c
@@ -133,6 +133,14 @@ GEN_XX2FORM_EO(xvxsigdp, 0x16, 0x1D, 0x01, PPC2_ISA300),
GEN_XX2FORM_EO(xvxexpsp, 0x16, 0x1D, 0x08, PPC2_ISA300),
GEN_XX2FORM_EO(xvxsigsp, 0x16, 0x1D, 0x09, PPC2_ISA300),
+/* DCMX = bit[25] << 6 | bit[29] << 5 | bit[11:15] */
+#define GEN_XX2FORM_DCMX(name, opc2, opc3, fl2) \
+GEN_XX3FORM(name, opc2, opc3 | 0, fl2), \
+GEN_XX3FORM(name, opc2, opc3 | 1, fl2)
+
+GEN_XX2FORM_DCMX(xvtstdcdp, 0x14, 0x1E, PPC2_ISA300),
+GEN_XX2FORM_DCMX(xvtstdcsp, 0x14, 0x1A, PPC2_ISA300),
+
GEN_XX2FORM(xvabsdp, 0x12, 0x1D, PPC2_VSX),
GEN_XX2FORM(xvnabsdp, 0x12, 0x1E, PPC2_VSX),
GEN_XX2FORM(xvnegdp, 0x12, 0x1F, PPC2_VSX),
--
2.7.4
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [Qemu-devel] [PATCH v2 2/2] target-ppc: Add xststdc[sp, dp, qp] instructions
2017-01-13 9:23 [Qemu-devel] [PATCH v2 0/2] POWER9 TCG enablements - part12 Nikunj A Dadhania
2017-01-13 9:23 ` [Qemu-devel] [PATCH v2 1/2] target-ppc: Add xvtstdc[sp, dp] instructions Nikunj A Dadhania
@ 2017-01-13 9:23 ` Nikunj A Dadhania
2017-01-24 6:47 ` [Qemu-devel] [PATCH v2 0/2] POWER9 TCG enablements - part12 Nikunj A Dadhania
2 siblings, 0 replies; 5+ messages in thread
From: Nikunj A Dadhania @ 2017-01-13 9:23 UTC (permalink / raw)
To: qemu-ppc, david, rth; +Cc: qemu-devel, bharata, nikunj
xststdcsp: VSX Scalar Test Data Class Single-Precision
xststdcdp: VSX Scalar Test Data Class Double-Precision
xststdcqp: VSX Scalar Test Data Class Quad-Precision
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
---
target/ppc/fpu_helper.c | 66 ++++++++++++++++++++++++++++++++-----
target/ppc/helper.h | 3 ++
target/ppc/internal.h | 1 +
target/ppc/translate/vsx-impl.inc.c | 3 ++
target/ppc/translate/vsx-ops.inc.c | 4 +++
5 files changed, 69 insertions(+), 8 deletions(-)
diff --git a/target/ppc/fpu_helper.c b/target/ppc/fpu_helper.c
index 45bc93c..9f5cafd 100644
--- a/target/ppc/fpu_helper.c
+++ b/target/ppc/fpu_helper.c
@@ -3196,17 +3196,22 @@ void helper_xvxsigsp(CPUPPCState *env, uint32_t opcode)
* fld - vsr_t field (VsrD(*) or VsrW(*))
* tfld - target vsr_t field (VsrD(*) or VsrW(*))
* fld_max - target field max
+ * scrf - set result in CR and FPCC
*/
-#define VSX_TEST_DC(op, nels, xbn, tp, fld, tfld, fld_max) \
+#define VSX_TEST_DC(op, nels, xbn, tp, fld, tfld, fld_max, scrf) \
void helper_##op(CPUPPCState *env, uint32_t opcode) \
{ \
ppc_vsr_t xt, xb; \
uint32_t i, sign, dcmx; \
- uint32_t match = 0; \
+ uint32_t cc, match = 0; \
\
getVSR(xbn, &xb, env); \
- memset(&xt, 0, sizeof(xt)); \
- dcmx = DCMX_XV(opcode); \
+ if (!scrf) { \
+ memset(&xt, 0, sizeof(xt)); \
+ dcmx = DCMX_XV(opcode); \
+ } else { \
+ dcmx = DCMX(opcode); \
+ } \
\
for (i = 0; i < nels; i++) { \
sign = tp##_is_neg(xb.fld); \
@@ -3219,11 +3224,56 @@ void helper_##op(CPUPPCState *env, uint32_t opcode) \
} else if (tp##_is_zero_or_denormal(xb.fld)) { \
match = extract32(dcmx, 0 + !sign, 1); \
} \
- xt.tfld = match ? fld_max : 0; \
+ \
+ if (scrf) { \
+ cc = sign << CRF_LT_BIT | match << CRF_EQ_BIT; \
+ env->fpscr &= ~(0x0F << FPSCR_FPRF); \
+ env->fpscr |= cc << FPSCR_FPRF; \
+ env->crf[BF(opcode)] = cc; \
+ } else { \
+ xt.tfld = match ? fld_max : 0; \
+ } \
match = 0; \
} \
- putVSR(xT(opcode), &xt, env); \
+ if (!scrf) { \
+ putVSR(xT(opcode), &xt, env); \
+ } \
}
-VSX_TEST_DC(xvtstdcdp, 2, xB(opcode), float64, VsrD(i), VsrD(i), UINT64_MAX)
-VSX_TEST_DC(xvtstdcsp, 4, xB(opcode), float32, VsrW(i), VsrW(i), UINT32_MAX)
+VSX_TEST_DC(xvtstdcdp, 2, xB(opcode), float64, VsrD(i), VsrD(i), UINT64_MAX, 0)
+VSX_TEST_DC(xvtstdcsp, 4, xB(opcode), float32, VsrW(i), VsrW(i), UINT32_MAX, 0)
+VSX_TEST_DC(xststdcdp, 1, xB(opcode), float64, VsrD(0), VsrD(0), 0, 1)
+VSX_TEST_DC(xststdcqp, 1, (rB(opcode) + 32), float128, f128, VsrD(0), 0, 1)
+
+void helper_xststdcsp(CPUPPCState *env, uint32_t opcode)
+{
+ ppc_vsr_t xb;
+ uint32_t dcmx, sign, exp;
+ uint32_t cc, match = 0, not_sp = 0;
+
+ getVSR(xB(opcode), &xb, env);
+ dcmx = DCMX(opcode);
+ exp = (xb.VsrD(0) >> 52) & 0x7FF;
+
+ sign = float64_is_neg(xb.VsrD(0));
+ if (float64_is_any_nan(xb.VsrD(0))) {
+ match = extract32(dcmx, 6, 1);
+ } else if (float64_is_infinity(xb.VsrD(0))) {
+ match = extract32(dcmx, 4 + !sign, 1);
+ } else if (float64_is_zero(xb.VsrD(0))) {
+ match = extract32(dcmx, 2 + !sign, 1);
+ } else if (float64_is_zero_or_denormal(xb.VsrD(0)) ||
+ (exp > 0 && exp < 0x381)) {
+ match = extract32(dcmx, 0 + !sign, 1);
+ }
+
+ not_sp = !float64_eq(xb.VsrD(0),
+ float32_to_float64(
+ float64_to_float32(xb.VsrD(0), &env->fp_status),
+ &env->fp_status), &env->fp_status);
+
+ cc = sign << CRF_LT_BIT | match << CRF_EQ_BIT | not_sp << CRF_SO_BIT;
+ env->fpscr &= ~(0x0F << FPSCR_FPRF);
+ env->fpscr |= cc << FPSCR_FPRF;
+ env->crf[BF(opcode)] = cc;
+}
diff --git a/target/ppc/helper.h b/target/ppc/helper.h
index 165e4a5..85af9df 100644
--- a/target/ppc/helper.h
+++ b/target/ppc/helper.h
@@ -451,6 +451,9 @@ DEF_HELPER_2(xscvuxdsp, void, env, i32)
DEF_HELPER_2(xscvsxdsp, void, env, i32)
DEF_HELPER_2(xscvudqp, void, env, i32)
DEF_HELPER_2(xscvuxddp, void, env, i32)
+DEF_HELPER_2(xststdcsp, void, env, i32)
+DEF_HELPER_2(xststdcdp, void, env, i32)
+DEF_HELPER_2(xststdcqp, void, env, i32)
DEF_HELPER_2(xsrdpi, void, env, i32)
DEF_HELPER_2(xsrdpic, void, env, i32)
DEF_HELPER_2(xsrdpim, void, env, i32)
diff --git a/target/ppc/internal.h b/target/ppc/internal.h
index 4c3811a..5a2fd68 100644
--- a/target/ppc/internal.h
+++ b/target/ppc/internal.h
@@ -198,6 +198,7 @@ EXTRACT_HELPER(UIM, 16, 2);
EXTRACT_HELPER(SHW, 8, 2);
EXTRACT_HELPER(SP, 19, 2);
EXTRACT_HELPER(IMM8, 11, 8);
+EXTRACT_HELPER(DCMX, 16, 7);
EXTRACT_HELPER_SPLIT_3(DCMX_XV, 5, 16, 0, 1, 2, 5, 1, 6, 6);
typedef union _ppc_vsr_t {
diff --git a/target/ppc/translate/vsx-impl.inc.c b/target/ppc/translate/vsx-impl.inc.c
index adb6fc7..a44c003 100644
--- a/target/ppc/translate/vsx-impl.inc.c
+++ b/target/ppc/translate/vsx-impl.inc.c
@@ -850,6 +850,9 @@ GEN_VSX_HELPER_2(xsnmsubasp, 0x04, 0x12, 0, PPC2_VSX207)
GEN_VSX_HELPER_2(xsnmsubmsp, 0x04, 0x13, 0, PPC2_VSX207)
GEN_VSX_HELPER_2(xscvsxdsp, 0x10, 0x13, 0, PPC2_VSX207)
GEN_VSX_HELPER_2(xscvuxdsp, 0x10, 0x12, 0, PPC2_VSX207)
+GEN_VSX_HELPER_2(xststdcsp, 0x14, 0x12, 0, PPC2_ISA300)
+GEN_VSX_HELPER_2(xststdcdp, 0x14, 0x16, 0, PPC2_ISA300)
+GEN_VSX_HELPER_2(xststdcqp, 0x04, 0x16, 0, PPC2_ISA300)
GEN_VSX_HELPER_2(xvadddp, 0x00, 0x0C, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xvsubdp, 0x00, 0x0D, 0, PPC2_VSX)
diff --git a/target/ppc/translate/vsx-ops.inc.c b/target/ppc/translate/vsx-ops.inc.c
index 6dd5d72..7dc9f6f 100644
--- a/target/ppc/translate/vsx-ops.inc.c
+++ b/target/ppc/translate/vsx-ops.inc.c
@@ -126,6 +126,10 @@ GEN_HANDLER_E(xsiexpdp, 0x3C, 0x16, 0x1C, 0, PPC_NONE, PPC2_ISA300),
GEN_VSX_XFORM_300(xsiexpqp, 0x4, 0x1B, 0x00000001),
#endif
+GEN_XX2FORM(xststdcdp, 0x14, 0x16, PPC2_ISA300),
+GEN_XX2FORM(xststdcsp, 0x14, 0x12, PPC2_ISA300),
+GEN_VSX_XFORM_300(xststdcqp, 0x04, 0x16, 0x00000001),
+
GEN_XX3FORM(xviexpsp, 0x00, 0x1B, PPC2_ISA300),
GEN_XX3FORM(xviexpdp, 0x00, 0x1F, PPC2_ISA300),
GEN_XX2FORM_EO(xvxexpdp, 0x16, 0x1D, 0x00, PPC2_ISA300),
--
2.7.4
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [Qemu-devel] [PATCH v2 0/2] POWER9 TCG enablements - part12
2017-01-13 9:23 [Qemu-devel] [PATCH v2 0/2] POWER9 TCG enablements - part12 Nikunj A Dadhania
2017-01-13 9:23 ` [Qemu-devel] [PATCH v2 1/2] target-ppc: Add xvtstdc[sp, dp] instructions Nikunj A Dadhania
2017-01-13 9:23 ` [Qemu-devel] [PATCH v2 2/2] target-ppc: Add xststdc[sp, dp, qp] instructions Nikunj A Dadhania
@ 2017-01-24 6:47 ` Nikunj A Dadhania
2017-02-01 0:24 ` David Gibson
2 siblings, 1 reply; 5+ messages in thread
From: Nikunj A Dadhania @ 2017-01-24 6:47 UTC (permalink / raw)
To: qemu-ppc, david, rth; +Cc: qemu-devel, bharata
Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> writes:
> This series contains 5 new instructions for POWER9 ISA3.0
> VSX Scalar Test Data Class
> VSX Vector Test Data Class
>
> Changelog:
> v1:
> * Zero the match variable in the element loops
>
> v0:
> * Concise logic for identifying data class in Scalar/Vector
> test data class instructions
>
> Nikunj A Dadhania (2):
> target-ppc: Add xvtstdc[sp,dp] instructions
> target-ppc: Add xststdc[sp, dp, qp] instructions
Ping?
Regards
Nikunj
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [Qemu-devel] [PATCH v2 0/2] POWER9 TCG enablements - part12
2017-01-24 6:47 ` [Qemu-devel] [PATCH v2 0/2] POWER9 TCG enablements - part12 Nikunj A Dadhania
@ 2017-02-01 0:24 ` David Gibson
0 siblings, 0 replies; 5+ messages in thread
From: David Gibson @ 2017-02-01 0:24 UTC (permalink / raw)
To: Nikunj A Dadhania; +Cc: qemu-ppc, rth, qemu-devel, bharata
[-- Attachment #1: Type: text/plain, Size: 861 bytes --]
On Tue, Jan 24, 2017 at 12:17:22PM +0530, Nikunj A Dadhania wrote:
> Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> writes:
>
> > This series contains 5 new instructions for POWER9 ISA3.0
> > VSX Scalar Test Data Class
> > VSX Vector Test Data Class
> >
> > Changelog:
> > v1:
> > * Zero the match variable in the element loops
> >
> > v0:
> > * Concise logic for identifying data class in Scalar/Vector
> > test data class instructions
> >
> > Nikunj A Dadhania (2):
> > target-ppc: Add xvtstdc[sp,dp] instructions
> > target-ppc: Add xststdc[sp, dp, qp] instructions
>
> Ping?
Sorry, I've been away. I've applied them now.
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 819 bytes --]
^ permalink raw reply [flat|nested] 5+ messages in thread
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