public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: Avi Kivity <avi@qumranet.com>
To: kvm-devel@lists.sourceforge.net
Cc: linux-kernel@vger.kernel.org, Ingo Molnar <mingo@elte.hu>,
	Andrew Morton <akpm@osdl.org>, Avi Kivity <avi@qumranet.com>
Subject: [PATCH 03/15] KVM: Initialize PIO I/O count
Date: Sun, 11 Mar 2007 15:53:15 +0200	[thread overview]
Message-ID: <1173621207798-git-send-email-avi@qumranet.com> (raw)
In-Reply-To: <11736212072915-git-send-email-avi@qumranet.com>

This allows userspace to ignore the io.rep field.  No a big deal, but
friendly.

Signed-off-by: Avi Kivity <avi@qumranet.com>
---
 drivers/kvm/svm.c |    1 +
 drivers/kvm/vmx.c |    1 +
 2 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c
index b176f5a..c35b8c8 100644
--- a/drivers/kvm/svm.c
+++ b/drivers/kvm/svm.c
@@ -1037,6 +1037,7 @@ static int io_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 	kvm_run->io.size = ((io_info & SVM_IOIO_SIZE_MASK) >> SVM_IOIO_SIZE_SHIFT);
 	kvm_run->io.string = (io_info & SVM_IOIO_STR_MASK) != 0;
 	kvm_run->io.rep = (io_info & SVM_IOIO_REP_MASK) != 0;
+	kvm_run->io.count = 1;
 
 	if (kvm_run->io.string) {
 		unsigned addr_mask;
diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c
index 7fd572a..d4c9f33 100644
--- a/drivers/kvm/vmx.c
+++ b/drivers/kvm/vmx.c
@@ -1459,6 +1459,7 @@ static int handle_io(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 		= (vmcs_readl(GUEST_RFLAGS) & X86_EFLAGS_DF) != 0;
 	kvm_run->io.rep = (exit_qualification & 32) != 0;
 	kvm_run->io.port = exit_qualification >> 16;
+	kvm_run->io.count = 1;
 	if (kvm_run->io.string) {
 		if (!get_io_count(vcpu, &kvm_run->io.count))
 			return 1;
-- 
1.5.0.2


  parent reply	other threads:[~2007-03-11 13:53 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-03-11 13:53 [PATCH 0/15] KVM userspace interface updates Avi Kivity
2007-03-11 13:53 ` [PATCH 01/15] KVM: Use a shared page for kernel/user communication when runing a vcpu Avi Kivity
2007-03-15  2:38   ` [kvm-devel] " Hollis Blanchard
2007-03-15  3:09     ` Hollis Blanchard
2007-03-11 13:53 ` [PATCH 02/15] KVM: Do not communicate to userspace through cpu registers during PIO Avi Kivity
2007-03-11 13:53 ` Avi Kivity [this message]
2007-03-11 13:53 ` [PATCH 04/15] KVM: Handle cpuid in the kernel instead of punting to userspace Avi Kivity
2007-03-11 13:53 ` [PATCH 05/15] KVM: Remove the 'emulated' field from the userspace interface Avi Kivity
2007-03-11 13:53 ` [PATCH 06/15] KVM: Remove minor wart from KVM_CREATE_VCPU ioctl Avi Kivity
2007-03-11 13:53 ` [PATCH 07/15] KVM: Renumber ioctls Avi Kivity
2007-03-11 13:53 ` [PATCH 08/15] KVM: Add method to check for backwards-compatible API extensions Avi Kivity
2007-03-16 15:06   ` [kvm-devel] " Heiko Carstens
2007-03-18  8:20     ` Avi Kivity
2007-03-11 13:53 ` [PATCH 09/15] KVM: Allow userspace to process hypercalls which have no kernel handler Avi Kivity
2007-03-11 13:53 ` [PATCH 10/15] KVM: Fold kvm_run::exit_type into kvm_run::exit_reason Avi Kivity
2007-03-11 13:53 ` [PATCH 11/15] KVM: Add a special exit reason when exiting due to an interrupt Avi Kivity
2007-03-11 13:53 ` [PATCH 12/15] KVM: Initialize the apic_base msr on svm too Avi Kivity
2007-03-11 13:53 ` [PATCH 13/15] KVM: Add guest mode signal mask Avi Kivity
2007-03-11 13:53 ` [PATCH 14/15] KVM: Allow kernel to select size of mmap() buffer Avi Kivity
2007-03-11 13:53 ` [PATCH 15/15] KVM: Future-proof argument-less ioctls Avi Kivity
2007-03-16  8:36 ` [kvm-devel] [PATCH 0/15] KVM userspace interface updates Heiko Carstens
2007-03-16 14:03   ` Anthony Liguori
2007-03-16 15:01     ` Heiko Carstens
2007-03-18 10:42       ` Avi Kivity
2007-03-19 15:43         ` Heiko Carstens
2007-03-19 16:02           ` Avi Kivity
2007-03-19 16:37             ` Heiko Carstens
2007-03-19 17:49             ` Avi Kivity
2007-03-18  5:20   ` Avi Kivity
2007-03-18 10:22     ` Heiko Carstens
2007-03-18 10:32       ` Avi Kivity

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=1173621207798-git-send-email-avi@qumranet.com \
    --to=avi@qumranet.com \
    --cc=akpm@osdl.org \
    --cc=kvm-devel@lists.sourceforge.net \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@elte.hu \
    /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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox