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[1/3] ARM: KVM: Remove l2ctlr write.

Message ID 87ty18xa0p.fsf@rustcorp.com.au
State New
Headers show

Commit Message

Rusty Russell March 29, 2012, 5:15 a.m. UTC 
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>
---
 arch/arm/kvm/emulate.c |    5 +----
 1 files changed, 1 insertions(+), 4 deletions(-)
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Patch

diff --git a/arch/arm/kvm/emulate.c b/arch/arm/kvm/emulate.c
index e356d1c..aec1b6e 100644
--- a/arch/arm/kvm/emulate.c
+++ b/arch/arm/kvm/emulate.c
@@ -278,13 +278,10 @@  struct coproc_emulate {
 
 static const struct coproc_emulate coproc_emulate[] = {
 	/*
-	 * 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},