There are a few issues with our handling of the ibm,pa-features
HTM bit:
- We don't support transactional memory in PR KVM, so don't tell
the OS that we do.
- In full emulation we have a minimal implementation of HTM that always
fails, so for performance reasons lets not tell the OS that we
support it either.
- In HV KVM mode, we should mirror the host HTM enabled state by
checking a KVM capability or looking at the AT_HWCAP2 bit.
For now unconditionally disable it by removing HTM from the
pa-features bits. It will be re-enabled in a subsequent patch
specifically for HV KVM.
Signed-off-by: Sam Bobroff <sam.bobr...@au1.ibm.com>
---
hw/ppc/spapr.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 78ebd9e..704aae7 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -635,7 +635,7 @@ static void spapr_populate_cpu_dt(CPUState *cs, void *fdt,
int offset,
0xf6, 0x1f, 0xc7, 0xc0, 0x80, 0xf0,
0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x80, 0x00,
- 0x80, 0x00, 0x80, 0x00, 0x80, 0x00 };
+ 0x80, 0x00, 0x80, 0x00, 0x00, 0x00 };
uint8_t *pa_features;
size_t pa_size;
--
2.1.0
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