From: James Hogan <james.hogan@imgtec.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: <qemu-devel@nongnu.org>, <kvm@vger.kernel.org>,
Aurelien Jarno <aurelien@aurel32.net>,
Gleb Natapov <gleb@redhat.com>, Sanjay Lal <sanjayl@kymasys.com>
Subject: Re: [PATCH v4 00/10] KVM Support for MIPS32 Processors
Date: Fri, 21 Mar 2014 16:51:04 +0000 [thread overview]
Message-ID: <532C6DF8.2020109@imgtec.com> (raw)
In-Reply-To: <532AE2B4.5020806@redhat.com>
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On 20/03/14 12:44, Paolo Bonzini wrote:
> Il 20/03/2014 11:00, James Hogan ha scritto:
>>> > Just a few comments. With what version of the kernel can this be
>>> tested?
>> KVM support was added in v3.10, including defconfigs and a
>> CONFIG_KVM_GUEST to ensure the kernel is linked to the different address.
>
> Yes, but you still need support for CP0_COUNT/CP0_COMPARE in the onereg
> interface. I haven't checked if other registers are missing.
Indeed, I'm working on fixing that now. EPC is missing too (there's a
comment in there about EPC which AFAICT seems to confuse the guest
CP0_EPC with the guest PC which are distinct state for full system
emulation).
Also unfortunately the CP0 register ids provided by QEMU all
(incorrectly) lack the size part too. Remarkably it generally works
quite well despite this since KVM takes care of most of the runtime details.
Cheers
James
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WARNING: multiple messages have this Message-ID (diff)
From: James Hogan <james.hogan@imgtec.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>,
Gleb Natapov <gleb@redhat.com>,
qemu-devel@nongnu.org, kvm@vger.kernel.org,
Sanjay Lal <sanjayl@kymasys.com>
Subject: Re: [Qemu-devel] [PATCH v4 00/10] KVM Support for MIPS32 Processors
Date: Fri, 21 Mar 2014 16:51:04 +0000 [thread overview]
Message-ID: <532C6DF8.2020109@imgtec.com> (raw)
In-Reply-To: <532AE2B4.5020806@redhat.com>
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On 20/03/14 12:44, Paolo Bonzini wrote:
> Il 20/03/2014 11:00, James Hogan ha scritto:
>>> > Just a few comments. With what version of the kernel can this be
>>> tested?
>> KVM support was added in v3.10, including defconfigs and a
>> CONFIG_KVM_GUEST to ensure the kernel is linked to the different address.
>
> Yes, but you still need support for CP0_COUNT/CP0_COMPARE in the onereg
> interface. I haven't checked if other registers are missing.
Indeed, I'm working on fixing that now. EPC is missing too (there's a
comment in there about EPC which AFAICT seems to confuse the guest
CP0_EPC with the guest PC which are distinct state for full system
emulation).
Also unfortunately the CP0 register ids provided by QEMU all
(incorrectly) lack the size part too. Remarkably it generally works
quite well despite this since KVM takes care of most of the runtime details.
Cheers
James
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next prev parent reply other threads:[~2014-03-21 16:51 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-14 12:47 [PATCH v4 00/10] KVM Support for MIPS32 Processors James Hogan
2014-03-14 12:47 ` [Qemu-devel] " James Hogan
2014-03-14 12:47 ` [PATCH v4 01/10] hw/mips/cputimer: Don't start periodic timer in KVM mode James Hogan
2014-03-14 12:47 ` [Qemu-devel] " James Hogan
2014-03-19 16:29 ` Paolo Bonzini
2014-03-19 16:29 ` [Qemu-devel] " Paolo Bonzini
2014-03-20 9:57 ` James Hogan
2014-03-20 9:57 ` [Qemu-devel] " James Hogan
2014-03-20 22:36 ` Paolo Bonzini
2014-03-20 22:36 ` [Qemu-devel] " Paolo Bonzini
2014-03-14 12:47 ` [PATCH v4 02/10] hw/mips: Add API to convert KVM guest KSEG0 <-> GPA James Hogan
2014-03-14 12:47 ` [Qemu-devel] " James Hogan
2014-03-14 12:47 ` [PATCH v4 03/10] target-mips: get_physical_address: Add defines for segment bases James Hogan
2014-03-14 12:47 ` [Qemu-devel] " James Hogan
2014-03-19 16:33 ` Paolo Bonzini
2014-03-19 16:33 ` [Qemu-devel] " Paolo Bonzini
2014-03-14 12:47 ` [PATCH v4 04/10] target-mips: get_physical_address: Add KVM awareness James Hogan
2014-03-14 12:47 ` [Qemu-devel] " James Hogan
2014-03-19 16:33 ` Paolo Bonzini
2014-03-19 16:33 ` [Qemu-devel] " Paolo Bonzini
2014-03-20 10:08 ` James Hogan
2014-03-20 10:08 ` [Qemu-devel] " James Hogan
2014-03-14 12:47 ` [PATCH v4 05/10] kvm: Allow arch to set sigmask length James Hogan
2014-03-14 12:47 ` [Qemu-devel] " James Hogan
2014-03-14 12:47 ` [PATCH v4 06/10] target-mips: kvm: Add main KVM support for MIPS James Hogan
2014-03-14 12:47 ` [Qemu-devel] " James Hogan
2014-03-14 12:47 ` [PATCH v4 07/10] hw/mips: In KVM mode, inject IRQ2 (I/O) interupts via ioctls James Hogan
2014-03-14 12:47 ` [Qemu-devel] " James Hogan
2014-03-14 12:47 ` [PATCH v4 08/10] hw/mips: malta: Add KVM support James Hogan
2014-03-14 12:47 ` [Qemu-devel] " James Hogan
2014-03-19 16:39 ` Paolo Bonzini
2014-03-19 16:39 ` [Qemu-devel] " Paolo Bonzini
2014-03-20 10:17 ` James Hogan
2014-03-20 10:17 ` [Qemu-devel] " James Hogan
2014-03-14 12:48 ` [PATCH v4 09/10] target-mips: Enable KVM support in build system James Hogan
2014-03-14 12:48 ` [Qemu-devel] " James Hogan
2014-03-14 12:48 ` [PATCH v4 10/10] MAINTAINERS: Add entry for MIPS KVM James Hogan
2014-03-14 12:48 ` [Qemu-devel] " James Hogan
2014-03-14 13:27 ` [Qemu-devel] [PATCH v4 00/10] KVM Support for MIPS32 Processors Peter Maydell
2014-03-14 13:27 ` Peter Maydell
2014-03-14 13:29 ` James Hogan
2014-03-14 13:29 ` James Hogan
2014-03-19 16:39 ` Paolo Bonzini
2014-03-19 16:39 ` [Qemu-devel] " Paolo Bonzini
2014-03-20 10:00 ` James Hogan
2014-03-20 10:00 ` [Qemu-devel] " James Hogan
2014-03-20 12:44 ` Paolo Bonzini
2014-03-20 12:44 ` [Qemu-devel] " Paolo Bonzini
2014-03-21 16:51 ` James Hogan [this message]
2014-03-21 16:51 ` James Hogan
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