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[2/2] docs/system/arm/emulation.rst: Report FEAT_GTG support

Message ID 20220930174853.2233633-3-peter.maydell@linaro.org
State Superseded
Headers show
Series target/arm: Enforce implemented granule size limits | expand

Commit Message

Peter Maydell Sept. 30, 2022, 5:48 p.m. UTC
FEAT_GTG is a change tho the ID register ID_AA64MMFR0_EL1 so that it
can report a different set of supported granule (page) sizes for
stage 1 and stage 2 translation tables.  As of commit c20281b2a5048
we already report the granule sizes that way for '-cpu max', and now
we also correctly make attempts to use unimplemented granule sizes
fail, so we can report the support of the feature in the
documentation.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 docs/system/arm/emulation.rst | 1 +
 1 file changed, 1 insertion(+)

Comments

Richard Henderson Sept. 30, 2022, 8:15 p.m. UTC | #1
On 9/30/22 10:48, Peter Maydell wrote:
> FEAT_GTG is a change tho the ID register ID_AA64MMFR0_EL1 so that it
> can report a different set of supported granule (page) sizes for
> stage 1 and stage 2 translation tables.  As of commit c20281b2a5048
> we already report the granule sizes that way for '-cpu max', and now
> we also correctly make attempts to use unimplemented granule sizes
> fail, so we can report the support of the feature in the
> documentation.
> 
> Signed-off-by: Peter Maydell<peter.maydell@linaro.org>
> ---
>   docs/system/arm/emulation.rst | 1 +
>   1 file changed, 1 insertion(+)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

r~
diff mbox series

Patch

diff --git a/docs/system/arm/emulation.rst b/docs/system/arm/emulation.rst
index be7bbffe595..cfb4b0768b0 100644
--- a/docs/system/arm/emulation.rst
+++ b/docs/system/arm/emulation.rst
@@ -31,6 +31,7 @@  the following architecture extensions:
 - FEAT_FRINTTS (Floating-point to integer instructions)
 - FEAT_FlagM (Flag manipulation instructions v2)
 - FEAT_FlagM2 (Enhancements to flag manipulation instructions)
+- FEAT_GTG (Guest translation granule size)
 - FEAT_HCX (Support for the HCRX_EL2 register)
 - FEAT_HPDS (Hierarchical permission disables)
 - FEAT_I8MM (AArch64 Int8 matrix multiplication instructions)