From: Avi Kivity <avi@redhat.com>
To: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>,
kvm@vger.kernel.org, qemu-devel <qemu-devel@nongnu.org>,
Anthony Liguori <aliguori@us.ibm.com>,
Gleb Natapov <gleb@redhat.com>, Blue Swirl <blauwirbel@gmail.com>
Subject: Re: [PATCH v3 6/9] kvmvapic: Introduce TPR access optimization for Windows guests
Date: Thu, 16 Feb 2012 17:29:28 +0200 [thread overview]
Message-ID: <4F3D20D8.9000700@redhat.com> (raw)
In-Reply-To: <286b8c6486f3b021ee21ec16960f5ffd4770225b.1329232393.git.jan.kiszka@siemens.com>
On 02/14/2012 05:13 PM, Jan Kiszka wrote:
> This enables acceleration for MMIO-based TPR registers accesses of
> 32-bit Windows guest systems. It is mostly useful with KVM enabled,
> either on older Intel CPUs (without flexpriority feature, can also be
> manually disabled for testing) or any current AMD processor.
>
> The approach introduced here is derived from the original version of
> qemu-kvm. It was refactored, documented, and extended by support for
> user space APIC emulation, both with and without KVM acceleration. The
> VMState format was kept compatible, so was the ABI to the option ROM
> that implements the guest-side para-virtualized driver service. This
> enables seamless migration from qemu-kvm to upstream or, one day,
> between KVM and TCG mode.
>
>
> +printf("patch @%lx\n", (long)ip);
Debug code
--
error compiling committee.c: too many arguments to function
WARNING: multiple messages have this Message-ID (diff)
From: Avi Kivity <avi@redhat.com>
To: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Anthony Liguori <aliguori@us.ibm.com>,
Gleb Natapov <gleb@redhat.com>,
kvm@vger.kernel.org, Marcelo Tosatti <mtosatti@redhat.com>,
qemu-devel <qemu-devel@nongnu.org>,
Blue Swirl <blauwirbel@gmail.com>
Subject: Re: [Qemu-devel] [PATCH v3 6/9] kvmvapic: Introduce TPR access optimization for Windows guests
Date: Thu, 16 Feb 2012 17:29:28 +0200 [thread overview]
Message-ID: <4F3D20D8.9000700@redhat.com> (raw)
In-Reply-To: <286b8c6486f3b021ee21ec16960f5ffd4770225b.1329232393.git.jan.kiszka@siemens.com>
On 02/14/2012 05:13 PM, Jan Kiszka wrote:
> This enables acceleration for MMIO-based TPR registers accesses of
> 32-bit Windows guest systems. It is mostly useful with KVM enabled,
> either on older Intel CPUs (without flexpriority feature, can also be
> manually disabled for testing) or any current AMD processor.
>
> The approach introduced here is derived from the original version of
> qemu-kvm. It was refactored, documented, and extended by support for
> user space APIC emulation, both with and without KVM acceleration. The
> VMState format was kept compatible, so was the ABI to the option ROM
> that implements the guest-side para-virtualized driver service. This
> enables seamless migration from qemu-kvm to upstream or, one day,
> between KVM and TCG mode.
>
>
> +printf("patch @%lx\n", (long)ip);
Debug code
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2012-02-16 15:29 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-14 15:13 [PATCH v3 0/9] uq/master: TPR access optimization for Windows guests Jan Kiszka
2012-02-14 15:13 ` [Qemu-devel] " Jan Kiszka
2012-02-14 15:13 ` [PATCH v3 1/9] kvm: Set cpu_single_env only once Jan Kiszka
2012-02-14 15:13 ` [Qemu-devel] " Jan Kiszka
2012-02-14 15:13 ` [PATCH v3 2/9] Remove useless casts from cpu iterators Jan Kiszka
2012-02-14 15:13 ` [Qemu-devel] " Jan Kiszka
2012-02-14 15:13 ` [PATCH v3 3/9] Allow to use pause_all_vcpus from VCPU context Jan Kiszka
2012-02-14 15:13 ` [Qemu-devel] " Jan Kiszka
2012-02-14 15:13 ` [PATCH v3 4/9] target-i386: Add infrastructure for reporting TPR MMIO accesses Jan Kiszka
2012-02-14 15:13 ` [Qemu-devel] " Jan Kiszka
2012-02-16 15:21 ` Avi Kivity
2012-02-16 15:21 ` [Qemu-devel] " Avi Kivity
2012-02-16 15:29 ` Jan Kiszka
2012-02-16 15:29 ` [Qemu-devel] " Jan Kiszka
2012-02-14 15:13 ` [PATCH v3 5/9] kvmvapic: Add option ROM Jan Kiszka
2012-02-14 15:13 ` [Qemu-devel] " Jan Kiszka
2012-02-14 15:13 ` [PATCH v3 6/9] kvmvapic: Introduce TPR access optimization for Windows guests Jan Kiszka
2012-02-14 15:13 ` [Qemu-devel] " Jan Kiszka
2012-02-16 15:29 ` Avi Kivity [this message]
2012-02-16 15:29 ` Avi Kivity
2012-02-14 15:13 ` [PATCH v3 7/9] kvmvapic: Simplify mp/up_set_tpr Jan Kiszka
2012-02-14 15:13 ` [Qemu-devel] " Jan Kiszka
2012-02-14 15:13 ` [PATCH v3 8/9] optionsrom: Reserve space for checksum Jan Kiszka
2012-02-14 15:13 ` [Qemu-devel] " Jan Kiszka
2012-02-14 15:13 ` [PATCH v3 9/9] kvmvapic: Use optionrom helpers Jan Kiszka
2012-02-14 15:13 ` [Qemu-devel] " Jan Kiszka
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