From: Paolo Bonzini <pbonzini@redhat.com>
To: James Hogan <james.hogan@imgtec.com>, qemu-devel@nongnu.org
Cc: kvm@vger.kernel.org, Aurelien Jarno <aurelien@aurel32.net>,
Gleb Natapov <gleb@redhat.com>, Sanjay Lal <sanjayl@kymasys.com>
Subject: Re: [PATCH v4 04/10] target-mips: get_physical_address: Add KVM awareness
Date: Wed, 19 Mar 2014 17:33:21 +0100 [thread overview]
Message-ID: <5329C6D1.7020904@redhat.com> (raw)
In-Reply-To: <1394801281-18997-5-git-send-email-james.hogan@imgtec.com>
Il 14/03/2014 13:47, James Hogan ha scritto:
> + if (kvm_enabled()) {
> + /* KVM T&E adds guest kernel segments in useg */
> + if (real_address >= KVM_KSEG0_BASE) {
> + if (real_address < KVM_KSEG2_BASE) {
> + /* kseg0 */
> + address += KSEG0_BASE - KVM_KSEG0_BASE;
> + } else if (real_address <= USEG_LIMIT) {
> + /* kseg2/3 */
> + address += KSEG2_BASE - KVM_KSEG2_BASE;
> + }
> + }
> + }
Besides changing the segment bases, is there anything else to do to run
KVM-enabled kernels under TCG? (I know nothing about MIPS and it
shows). We should consider adding a knob to run them in TCG mode.
This is not blocking this series, and I'm okay with helping or even
doing the work, if somebody tells me what to do. :)
Paolo
WARNING: multiple messages have this Message-ID (diff)
From: Paolo Bonzini <pbonzini@redhat.com>
To: James Hogan <james.hogan@imgtec.com>, qemu-devel@nongnu.org
Cc: Sanjay Lal <sanjayl@kymasys.com>, Gleb Natapov <gleb@redhat.com>,
Aurelien Jarno <aurelien@aurel32.net>,
kvm@vger.kernel.org
Subject: Re: [Qemu-devel] [PATCH v4 04/10] target-mips: get_physical_address: Add KVM awareness
Date: Wed, 19 Mar 2014 17:33:21 +0100 [thread overview]
Message-ID: <5329C6D1.7020904@redhat.com> (raw)
In-Reply-To: <1394801281-18997-5-git-send-email-james.hogan@imgtec.com>
Il 14/03/2014 13:47, James Hogan ha scritto:
> + if (kvm_enabled()) {
> + /* KVM T&E adds guest kernel segments in useg */
> + if (real_address >= KVM_KSEG0_BASE) {
> + if (real_address < KVM_KSEG2_BASE) {
> + /* kseg0 */
> + address += KSEG0_BASE - KVM_KSEG0_BASE;
> + } else if (real_address <= USEG_LIMIT) {
> + /* kseg2/3 */
> + address += KSEG2_BASE - KVM_KSEG2_BASE;
> + }
> + }
> + }
Besides changing the segment bases, is there anything else to do to run
KVM-enabled kernels under TCG? (I know nothing about MIPS and it
shows). We should consider adding a knob to run them in TCG mode.
This is not blocking this series, and I'm okay with helping or even
doing the work, if somebody tells me what to do. :)
Paolo
next prev parent reply other threads:[~2014-03-19 16:33 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 [this message]
2014-03-19 16:33 ` 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
2014-03-21 16:51 ` [Qemu-devel] " James Hogan
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