From: Rusty Russell <rusty@rustcorp.com.au>
To: Christoffer Dall <c.dall@virtualopensystems.com>,
android-virt@lists.cs.columbia.edu, kvm@vger.kernel.org
Cc: tech@virtualopensystems.com
Subject: [PATCH] ARM: KVM: Remove l2ctlr write.
Date: Fri, 23 Mar 2012 11:10:10 +1030 [thread overview]
Message-ID: <87lims880l.fsf@rustcorp.com.au> (raw)
In-Reply-To: 20120312065134.8074.36949.stgit@ubuntu
Current guests don't do this, and it's not clear what we should do if they
try to turn on ECC or set various RAM latencies. When someone does this,
we'll have a better idea of what we should do about it.
Signed-off-by: Rusty Russell <rusty.russell@linaro.org>
diff --git a/arch/arm/kvm/emulate.c b/arch/arm/kvm/emulate.c
index c07eb2b..b83e4ba 100644
--- a/arch/arm/kvm/emulate.c
+++ b/arch/arm/kvm/emulate.c
@@ -290,13 +290,10 @@ static const struct coproc_emulate coproc_emulate[] = {
{ CRn( 0), CRm( 1), Op1( 0), Op2( 2), is32, READ, read_id_dfr0},
/*
- * L2CTLR access:
- *
- * Ignore writes completely.
+ * L2CTLR access (guest wants to know #CPUs).
*
* FIXME: Hack Alert: Read zero as default case.
*/
- { CRn( 9), CRm( 0), Op1( 1), Op2( 2), is32, WRITE, ignore_write},
{ CRn( 9), CRm( 0), Op1( 1), Op2( 2), is32, READ, read_l2ctlr},
{ CRn( 9), CRm(DF), Op1(DF), Op2(DF), is32, WRITE, ignore_write},
{ CRn( 9), CRm(DF), Op1(DF), Op2(DF), is32, READ, read_zero},
next prev parent reply other threads:[~2012-03-23 0:44 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-12 6:51 [PATCH v7 00/12] KVM/ARM Implementation Christoffer Dall
2012-03-12 6:51 ` [PATCH v7 01/12] KVM: Introduce __KVM_HAVE_IRQ_LINE Christoffer Dall
2012-03-23 0:41 ` [PATCH] ARM: KVM: Check the cpuid we're being asked to emulate Rusty Russell
2012-05-14 22:57 ` Christoffer Dall
2012-05-16 23:58 ` Rusty Russell
2012-05-20 18:34 ` Christoffer Dall
2012-05-21 1:13 ` Rusty Russell
2012-03-12 6:52 ` [PATCH v7 02/12] KVM: Guard mmu_notifier specific code with CONFIG_MMU_NOTIFIER Christoffer Dall
2012-03-12 15:50 ` Avi Kivity
2012-03-12 6:52 ` [PATCH v7 03/12] ARM: KVM: Initial skeleton to compile KVM support Christoffer Dall
2012-03-12 6:52 ` [PATCH v7 04/12] ARM: KVM: Hypervisor identity mapping Christoffer Dall
2012-03-12 6:52 ` [PATCH v7 05/12] ARM: KVM: Hypervisor inititalization Christoffer Dall
2012-03-12 6:52 ` [PATCH v7 06/12] ARM: KVM: Memory virtualization setup Christoffer Dall
2012-03-12 6:52 ` [PATCH v7 07/12] ARM: KVM: Inject IRQs and FIQs from userspace Christoffer Dall
2012-03-12 6:52 ` [PATCH v7 08/12] ARM: KVM: World-switch implementation Christoffer Dall
2012-03-23 0:23 ` Rusty Russell
2012-03-28 13:05 ` Avi Kivity
2012-03-28 21:57 ` Rusty Russell
2012-03-29 10:49 ` Avi Kivity
2012-05-14 18:08 ` Christoffer Dall
2012-03-12 6:52 ` [PATCH v7 09/12] ARM: KVM: Emulation framework and CP15 emulation Christoffer Dall
2012-03-12 6:52 ` [PATCH v7 10/12] ARM: KVM: Handle guest faults in KVM Christoffer Dall
2012-03-12 15:31 ` [Android-virt] " Marc Zyngier
2012-03-12 16:23 ` Christoffer Dall
2012-03-12 16:28 ` Marc Zyngier
2012-03-12 6:53 ` [PATCH v7 11/12] ARM: KVM: Handle I/O aborts Christoffer Dall
2012-03-12 6:53 ` [PATCH v7 12/12] ARM: KVM: Guest wait-for-interrupts (WFI) support Christoffer Dall
2012-03-12 17:36 ` [PATCH v7 00/12] KVM/ARM Implementation Avi Kivity
2012-03-23 0:40 ` Rusty Russell [this message]
2012-05-14 22:59 ` [PATCH] ARM: KVM: Remove l2ctlr write Christoffer Dall
2012-03-29 5:11 ` [PATCH 0/3] Emulation cleanups Rusty, Russell <rusty.russell
2012-03-29 5:15 ` [PATCH 1/3] ARM: KVM: Remove l2ctlr write Rusty Russell
2012-03-29 5:17 ` [PATCH 2/3] ARM: KVM: Fake up performance counters a little more precisely Rusty Russell
2012-05-14 22:49 ` Christoffer Dall
2012-05-17 0:12 ` Rusty Russell
2012-03-29 5:17 ` [PATCH 3/3] ARM: KVM: Check the cpuid we're being asked to emulate Rusty Russell
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