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 10/13] KVM: SVM: Add intercept checks for remaining twobyte instructions
Date: Fri, 25 Mar 2011 10:29:13 +0100 [thread overview]
Message-ID: <1301045356-25257-11-git-send-email-joerg.roedel@amd.com> (raw)
In-Reply-To: <1301045356-25257-1-git-send-email-joerg.roedel@amd.com>
This patch adds intercepts checks for the remaining twobyte
instructions to the KVM instruction emulator.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
arch/x86/include/asm/kvm_emulate.h | 2 ++
arch/x86/kvm/emulate.c | 8 ++++----
arch/x86/kvm/svm.c | 19 +++++++++++++++++++
3 files changed, 25 insertions(+), 4 deletions(-)
diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h
index db744c9..41c0120 100644
--- a/arch/x86/include/asm/kvm_emulate.h
+++ b/arch/x86/include/asm/kvm_emulate.h
@@ -315,6 +315,8 @@ enum x86_intercept {
x86_intercept_wbinvd,
x86_intercept_monitor,
x86_intercept_mwait,
+ x86_intercept_rdmsr,
+ x86_intercept_wrmsr,
nr_x86_intercepts
};
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 0aaba1e..8947643 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -2550,8 +2550,8 @@ static struct opcode twobyte_table[256] = {
N, N, N, N,
N, N, N, N, N, N, N, N,
/* 0x30 - 0x3F */
- D(ImplicitOps | Priv), II(ImplicitOps, em_rdtsc, rdtsc),
- D(ImplicitOps | Priv), N,
+ DI(ImplicitOps | Priv, wrmsr), II(ImplicitOps, em_rdtsc, rdtsc),
+ DI(ImplicitOps | Priv, rdmsr), DI(ImplicitOps | Priv, rdpmc),
D(ImplicitOps | VendorSpecific), D(ImplicitOps | Priv | VendorSpecific),
N, N,
N, N, N, N, N, N, N, N,
@@ -2569,12 +2569,12 @@ static struct opcode twobyte_table[256] = {
X16(D(ByteOp | DstMem | SrcNone | ModRM| Mov)),
/* 0xA0 - 0xA7 */
D(ImplicitOps | Stack), D(ImplicitOps | Stack),
- N, D(DstMem | SrcReg | ModRM | BitOp),
+ DI(ImplicitOps, cpuid), D(DstMem | SrcReg | ModRM | BitOp),
D(DstMem | SrcReg | Src2ImmByte | ModRM),
D(DstMem | SrcReg | Src2CL | ModRM), N, N,
/* 0xA8 - 0xAF */
D(ImplicitOps | Stack), D(ImplicitOps | Stack),
- N, D(DstMem | SrcReg | ModRM | BitOp | Lock),
+ DI(ImplicitOps, rsm), D(DstMem | SrcReg | ModRM | BitOp | Lock),
D(DstMem | SrcReg | Src2ImmByte | ModRM),
D(DstMem | SrcReg | Src2CL | ModRM),
D(ModRM), I(DstReg | SrcMem | ModRM, em_imul),
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 958697e..c2e90bb 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -3871,6 +3871,9 @@ static void svm_fpu_deactivate(struct kvm_vcpu *vcpu)
update_cr0_intercept(svm);
}
+#define PRE_EX(exit) { .exit_code = (exit), \
+ .stage = x86_icpt_pre_except, \
+ .valid = true }
#define POST_EX(exit) { .exit_code = (exit), \
.stage = x86_icpt_post_except, \
.valid = true }
@@ -3910,8 +3913,18 @@ static struct __x86_intercept {
[x86_intercept_rdtscp] = POST_EX(SVM_EXIT_RDTSCP),
[x86_intercept_monitor] = POST_MEM(SVM_EXIT_MONITOR),
[x86_intercept_mwait] = POST_EX(SVM_EXIT_MWAIT),
+ [x86_intercept_invlpg] = POST_EX(SVM_EXIT_INVLPG),
+ [x86_intercept_invd] = POST_EX(SVM_EXIT_INVD),
+ [x86_intercept_wbinvd] = POST_EX(SVM_EXIT_WBINVD),
+ [x86_intercept_wrmsr] = POST_EX(SVM_EXIT_MSR),
+ [x86_intercept_rdtsc] = POST_EX(SVM_EXIT_RDTSC),
+ [x86_intercept_rdmsr] = POST_EX(SVM_EXIT_MSR),
+ [x86_intercept_rdpmc] = POST_EX(SVM_EXIT_RDPMC),
+ [x86_intercept_cpuid] = PRE_EX(SVM_EXIT_CPUID),
+ [x86_intercept_rsm] = PRE_EX(SVM_EXIT_RSM),
};
+#undef PRE_EX
#undef POST_EX
#undef POST_MEM
@@ -3971,6 +3984,12 @@ static int svm_check_intercept(struct kvm_vcpu *vcpu,
case SVM_EXIT_WRITE_DR0:
icpt_info.exit_code += reg;
break;
+ case SVM_EXIT_MSR:
+ if (info->intercept == x86_intercept_wrmsr)
+ vmcb->control.exit_info_1 = 1;
+ else
+ vmcb->control.exit_info_1 = 0;
+ break;
default:
break;
}
--
1.7.1
next prev parent reply other threads:[~2011-03-25 9:29 UTC|newest]
Thread overview: 27+ 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 ` Joerg Roedel [this message]
2011-03-25 9:29 ` [PATCH 11/13] KVM: SVM: Add intercept checks for one-byte instructions Joerg Roedel
2011-03-26 9:53 ` 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 10/13] KVM: SVM: Add intercept checks for remaining twobyte instructions Joerg Roedel
2011-03-28 12:29 ` Avi Kivity
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