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From: alex.bennee@linaro.org (Alex Bennée)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] arm64: KVM: export demux regids as KVM_REG_ARM64
Date: Tue,  1 Jul 2014 16:53:13 +0100	[thread overview]
Message-ID: <1404229993-14522-1-git-send-email-alex.bennee@linaro.org> (raw)

I suspect this is a -ECUTPASTE fault from the initial implementation. If
we don't declare the register ID to be KVM_REG_ARM64 the KVM_GET_ONE_REG
implementation kvm_arm_get_reg() returns -EINVAL and hilarity ensues.

The kvm/api.txt document describes all arm64 registers as starting with
0x60xx... (i.e KVM_REG_ARM64).

Signed-off-by: Alex Benn?e <alex.bennee@linaro.org>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
---
 arch/arm64/kvm/sys_regs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 0324458..5ee99e4 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -962,7 +962,7 @@ static unsigned int num_demux_regs(void)
 
 static int write_demux_regids(u64 __user *uindices)
 {
-	u64 val = KVM_REG_ARM | KVM_REG_SIZE_U32 | KVM_REG_ARM_DEMUX;
+	u64 val = KVM_REG_ARM64 | KVM_REG_SIZE_U32 | KVM_REG_ARM_DEMUX;
 	unsigned int i;
 
 	val |= KVM_REG_ARM_DEMUX_ID_CCSIDR;
-- 
2.0.0

             reply	other threads:[~2014-07-01 15:53 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-01 15:53 Alex Bennée [this message]
2014-07-01 15:56 ` [PATCH] arm64: KVM: export demux regids as KVM_REG_ARM64 Marc Zyngier
2014-07-04 10:13   ` Christoffer Dall

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