From: Joerg Roedel <joerg.roedel@amd.com>
To: Avi Kivity <avi@redhat.com>, Marcelo Tosatti <mtosatti@redhat.com>
Cc: <kvm@vger.kernel.org>, Joerg Roedel <joerg.roedel@amd.com>
Subject: [PATCH 11/13] KVM: SVM: Add intercept checks for one-byte instructions
Date: Fri, 25 Mar 2011 10:29:14 +0100 [thread overview]
Message-ID: <1301045356-25257-12-git-send-email-joerg.roedel@amd.com> (raw)
In-Reply-To: <1301045356-25257-1-git-send-email-joerg.roedel@amd.com>
This patch add intercept checks for emulated one-byte
instructions to the KVM instruction emulation path.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
arch/x86/kvm/emulate.c | 4 ++--
arch/x86/kvm/svm.c | 14 ++++++++++++++
2 files changed, 16 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 8947643..4c0939d 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -2484,7 +2484,7 @@ static struct opcode opcode_table[256] = {
D(DstMem | SrcNone | ModRM | Mov), D(ModRM | SrcMem | NoAccess | DstReg),
D(ImplicitOps | SrcMem16 | ModRM), G(0, group1A),
/* 0x90 - 0x97 */
- X8(D(SrcAcc | DstReg)),
+ DI(SrcAcc | DstReg, pause), X7(D(SrcAcc | DstReg)),
/* 0x98 - 0x9F */
D(DstAcc | SrcNone), I(ImplicitOps | SrcAcc, em_cwd),
I(SrcImmFAddr | No64, em_call_far), N,
@@ -2526,7 +2526,7 @@ static struct opcode opcode_table[256] = {
D(SrcImmFAddr | No64), D(SrcImmByte | ImplicitOps),
D2bv(SrcNone | DstAcc), D2bv(SrcAcc | ImplicitOps),
/* 0xF0 - 0xF7 */
- N, N, N, N,
+ N, DI(ImplicitOps, icebp), N, N,
DI(ImplicitOps | Priv, hlt), D(ImplicitOps),
G(ByteOp, group3), G(0, group3),
/* 0xF8 - 0xFF */
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index c2e90bb..847a3f9 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -3922,6 +3922,13 @@ static struct __x86_intercept {
[x86_intercept_rdpmc] = POST_EX(SVM_EXIT_RDPMC),
[x86_intercept_cpuid] = PRE_EX(SVM_EXIT_CPUID),
[x86_intercept_rsm] = PRE_EX(SVM_EXIT_RSM),
+ [x86_intercept_pause] = PRE_EX(SVM_EXIT_PAUSE),
+ [x86_intercept_pushf] = PRE_EX(SVM_EXIT_PUSHF),
+ [x86_intercept_popf] = PRE_EX(SVM_EXIT_POPF),
+ [x86_intercept_intn] = PRE_EX(SVM_EXIT_SWINT),
+ [x86_intercept_iret] = PRE_EX(SVM_EXIT_IRET),
+ [x86_intercept_icebp] = PRE_EX(SVM_EXIT_ICEBP),
+ [x86_intercept_hlt] = POST_EX(SVM_EXIT_HLT),
};
#undef PRE_EX
@@ -3990,6 +3997,13 @@ static int svm_check_intercept(struct kvm_vcpu *vcpu,
else
vmcb->control.exit_info_1 = 0;
break;
+ case SVM_EXIT_PAUSE:
+ /*
+ * We get this for NOP only, but pause
+ * is rep not, check this here
+ */
+ if (info->rep_prefix != REPE_PREFIX)
+ goto out;
default:
break;
}
--
1.7.1
next prev parent reply other threads:[~2011-03-25 9:29 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-25 9:29 [PATCH 0/13] KVM: Make the instruction emulator aware of Nested Virtualization v2 Joerg Roedel
2011-03-25 9:29 ` [PATCH 01/13] KVM: x86 emulator: add framework for instruction Joerg Roedel
2011-03-26 9:54 ` Avi Kivity
2011-03-27 12:56 ` Gleb Natapov
2011-03-28 10:19 ` Joerg Roedel
2011-03-25 9:29 ` [PATCH 02/13] KVM: x86 emulator: add SVM intercepts Joerg Roedel
2011-03-25 9:29 ` [PATCH 03/13] KVM: X86: Don't write-back cpu-state on X86EMUL_INTERCEPTED Joerg Roedel
2011-03-25 9:29 ` [PATCH 04/13] KVM: X86: Add x86 callback for intercept check Joerg Roedel
2011-03-26 9:23 ` Avi Kivity
2011-03-25 9:29 ` [PATCH 05/13] KVM: SVM: Add intercept check for emulated cr accesses Joerg Roedel
2011-03-26 9:37 ` Avi Kivity
2011-03-26 11:06 ` Joerg Roedel
2011-03-27 9:45 ` Avi Kivity
2011-03-25 9:29 ` [PATCH 06/13] KVM: SVM: Add intercept check for accessing dr registers Joerg Roedel
2011-03-25 9:29 ` [PATCH 07/13] KVM: SVM: Add intercept checks for descriptor table accesses Joerg Roedel
2011-03-26 9:43 ` Avi Kivity
2011-03-26 11:10 ` Joerg Roedel
2011-03-25 9:29 ` [PATCH 08/13] KVM: SVM: Add intercept checks for SVM instructions Joerg Roedel
2011-03-25 9:29 ` [PATCH 09/13] KVM: SVM: Add intercept checks for remaining group7 instructions Joerg Roedel
2011-03-25 9:29 ` [PATCH 10/13] KVM: SVM: Add intercept checks for remaining twobyte instructions Joerg Roedel
2011-03-25 9:29 ` Joerg Roedel [this message]
2011-03-26 9:53 ` [PATCH 11/13] KVM: SVM: Add intercept checks for one-byte instructions Avi Kivity
2011-03-25 9:29 ` [PATCH 12/13] KVM: SVM: Add checks for IO instructions Joerg Roedel
2011-03-25 9:29 ` [PATCH 13/13] KVM: SVM: Remove nested sel_cr0_write handling code Joerg Roedel
2011-03-26 9:55 ` [PATCH 0/13] KVM: Make the instruction emulator aware of Nested Virtualization v2 Avi Kivity
2011-03-28 10:46 [PATCH 0/13] KVM: Make the instruction emulator aware of Nested Virtualization v3 Joerg Roedel
2011-03-28 10:46 ` [PATCH 11/13] KVM: SVM: Add intercept checks for one-byte instructions Joerg Roedel
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