From: Gleb Natapov <gleb@redhat.com>
To: mtosatti@redhat.com, avi@redhat.com
Cc: kvm@vger.kernel.org
Subject: [PATCH] KVM: handle exit due to INVD in VMX
Date: Sun, 31 Oct 2010 16:36:35 +0200 [thread overview]
Message-ID: <20101031143635.GW26191@redhat.com> (raw)
Call into emulator when INVD instruction is executed by a guest.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h
index 9f0cbd9..42d9590 100644
--- a/arch/x86/include/asm/vmx.h
+++ b/arch/x86/include/asm/vmx.h
@@ -239,6 +239,7 @@ enum vmcs_field {
#define EXIT_REASON_TASK_SWITCH 9
#define EXIT_REASON_CPUID 10
#define EXIT_REASON_HLT 12
+#define EXIT_REASON_INVD 13
#define EXIT_REASON_INVLPG 14
#define EXIT_REASON_RDPMC 15
#define EXIT_REASON_RDTSC 16
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 993e332..200533e 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -3350,6 +3350,11 @@ static int handle_vmx_insn(struct kvm_vcpu *vcpu)
return 1;
}
+static int handle_invd(struct kvm_vcpu *vcpu)
+{
+ return emulate_instruction(vcpu, 0, 0, 0) == EMULATE_DONE;
+}
+
static int handle_invlpg(struct kvm_vcpu *vcpu)
{
unsigned long exit_qualification = vmcs_readl(EXIT_QUALIFICATION);
@@ -3650,6 +3655,7 @@ static int (*kvm_vmx_exit_handlers[])(struct kvm_vcpu *vcpu) = {
[EXIT_REASON_MSR_WRITE] = handle_wrmsr,
[EXIT_REASON_PENDING_INTERRUPT] = handle_interrupt_window,
[EXIT_REASON_HLT] = handle_halt,
+ [EXIT_REASON_INVD] = handle_invd,
[EXIT_REASON_INVLPG] = handle_invlpg,
[EXIT_REASON_VMCALL] = handle_vmcall,
[EXIT_REASON_VMCLEAR] = handle_vmx_insn,
--
Gleb.
next reply other threads:[~2010-10-31 14:36 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-31 14:36 Gleb Natapov [this message]
2010-10-31 18:00 ` [PATCH] KVM: handle exit due to INVD in VMX Alexander Graf
2010-10-31 18:22 ` Gleb Natapov
2010-10-31 18:26 ` Alexander Graf
2010-10-31 18:56 ` Gleb Natapov
2010-10-31 19:01 ` Alexander Graf
2010-10-31 19:22 ` Gleb Natapov
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20101031143635.GW26191@redhat.com \
--to=gleb@redhat.com \
--cc=avi@redhat.com \
--cc=kvm@vger.kernel.org \
--cc=mtosatti@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.