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authorMarc Zyngier <marc.zyngier@arm.com>2014-12-19 16:05:31 +0000
committerChristoffer Dall <christoffer.dall@linaro.org>2015-01-29 23:24:56 +0100
commit3c1e716508335eb132c9349cb1a1716c8f7e3d2e (patch)
tree39aa2fe691caa61a34cef1ac7d09f3348249ddb5 /arch/arm/kvm/coproc_a7.c
parentf3747379accba8e95d70cec0eae0582c8c182050 (diff)
arm/arm64: KVM: Use set/way op trapping to track the state of the caches
Trying to emulate the behaviour of set/way cache ops is fairly pointless, as there are too many ways we can end-up missing stuff. Also, there is some system caches out there that simply ignore set/way operations. So instead of trying to implement them, let's convert it to VA ops, and use them as a way to re-enable the trapping of VM ops. That way, we can detect the point when the MMU/caches are turned off, and do a full VM flush (which is what the guest was trying to do anyway). This allows a 32bit zImage to boot on the APM thingy, and will probably help bootloaders in general. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'arch/arm/kvm/coproc_a7.c')
-rw-r--r--arch/arm/kvm/coproc_a7.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/kvm/coproc_a7.c b/arch/arm/kvm/coproc_a7.c
index 17fc7cd479d3..b19e46d1b2c0 100644
--- a/arch/arm/kvm/coproc_a7.c
+++ b/arch/arm/kvm/coproc_a7.c
@@ -37,7 +37,7 @@
static const struct coproc_reg a7_regs[] = {
/* SCTLR: swapped by interrupt.S. */
{ CRn( 1), CRm( 0), Op1( 0), Op2( 0), is32,
- access_sctlr, reset_val, c1_SCTLR, 0x00C50878 },
+ access_vm_reg, reset_val, c1_SCTLR, 0x00C50878 },
};
static struct kvm_coproc_target_table a7_target_table = {