Thread (10 messages) 10 messages, 3 authors, 2014-10-11
STALE4290d
Revisions (4)
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[PATCH v3 3/3] arm64: Allow 48-bits VA space without ARM_SMMU

From: Christoffer Dall <hidden>
Date: 2014-10-10 21:03:02
Also in: kvm

On Fri, Oct 10, 2014 at 04:10:53PM +0100, Catalin Marinas wrote:
On Fri, Oct 10, 2014 at 11:14:30AM +0100, Christoffer Dall wrote:
quoted
Now when KVM has been reworked to support 48-bits host VA space, we can
allow systems to be configured with this option.  However, the ARM SMMU
driver also needs to be tweaked for 48-bit support so only allow the
config option to be set when not including support for theSMMU.

Signed-off-by: Christoffer Dall <redacted>
---
 arch/arm64/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index fd4e81a..a76c6c3b 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -200,7 +200,7 @@ config ARM64_VA_BITS_42
 
 config ARM64_VA_BITS_48
 	bool "48-bit"
-	depends on BROKEN
+	depends on !ARM_SMMU
 
 endchoice
I think we should rather merge this separately via the arm64 tree once
we test 48-bit VA some more (and as you noticed, there is a bug
already).
Sounds like a good idea, I'll apply the other two to kvmarm.

Thanks for the reviews!

-Christoffer
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