On 03/28/2011 12:46 PM, Joerg Roedel wrote:
This patch implements the emulator intercept checks for the
RDTSCP, MONITOR, and MWAIT instructions.
Signed-off-by: Joerg Roedel<joerg.roedel@xxxxxxx>
---
arch/x86/kvm/emulate.c | 15 +++++++++++++--
arch/x86/kvm/svm.c | 3 +++
2 files changed, 16 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 8b8f63d..e0eed4c 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -2366,6 +2366,12 @@ static int em_mov(struct x86_emulate_ctxt *ctxt)
D2bv(((_f)& ~Lock) | DstAcc | SrcImm)
+static struct opcode group7_rm1[] = {
+ DI(SrcNone | ModRM | Priv, monitor),
+ DI(SrcNone | ModRM | Priv, mwait),
Note these are unprivileged if magic msr c0010015 is tweaked. I don't
think we support the enabled setting.
+ N, N, N, N, N, N,
+};
+
static struct opcode group7_rm3[] = {
DI(SrcNone | ModRM | Priv, vmrun),
DI(SrcNone | ModRM | Priv, vmmcall),
@@ -2377,6 +2383,11 @@ static struct opcode group7_rm3[] = {
DI(SrcNone | ModRM | Priv, invlpga),
};
+static struct opcode group7_rm7[] = {
+ N,
+ DI(SrcNone | ModRM, rdtscp),
Need to check cr4.tsd before the intercept.
+ N, N, N, N, N, N,
+};
static struct opcode group1[] = {
X7(D(Lock)), N
};
@@ -2419,10 +2430,10 @@ static struct group_dual group7 = { {
DI(SrcMem16 | ModRM | Mov | Priv, lmsw),
DI(SrcMem | ModRM | ByteOp | Priv | NoAccess, invlpg),
}, {
- D(SrcNone | ModRM | Priv | VendorSpecific), N,
+ D(SrcNone | ModRM | Priv | VendorSpecific), EXT(0, group7_rm1),
N, EXT(0, group7_rm3),
DI(SrcNone | ModRM | DstMem | Mov, smsw), N,
- DI(SrcMem16 | ModRM | Mov | Priv, lmsw), N,
+ DI(SrcMem16 | ModRM | Mov | Priv, lmsw), EXT(0, group7_rm7),
} };
static struct opcode group8[] = {
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 9b22f5f..2853625 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -3904,6 +3904,9 @@ static struct __x86_intercept {
[x86_intercept_clgi] = POST_EX(SVM_EXIT_CLGI),
[x86_intercept_skinit] = POST_EX(SVM_EXIT_SKINIT),
[x86_intercept_invlpga] = POST_EX(SVM_EXIT_INVLPGA),
+ [x86_intercept_rdtscp] = POST_EX(SVM_EXIT_RDTSCP),
+ [x86_intercept_monitor] = POST_MEM(SVM_EXIT_MONITOR),
+ [x86_intercept_mwait] = POST_EX(SVM_EXIT_MWAIT),
};
#undef POST_EX
--
error compiling committee.c: too many arguments to function
--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
