x86/tdx: Remove TDX_HCALL_ISSUE_STI

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Now that arch_cpu_idle() is expected to return with IRQs disabled,
avoid the useless STI/CLI dance.

Per the specs this is supposed to work, but nobody has yet relied up
this behaviour so broken implementations are possible.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Tony Lindgren <tony@atomide.com>
Tested-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230112195540.682137572@infradead.org

...

This commit is contained in:

Peter Zijlstra 2023-01-12 20:43:36 +01:00 • committed by Ingo Molnar

parent 89b3098703

commit e80a48bade

3 changed files with 4 additions and 33 deletions

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13

arch/x86/coco/tdx/tdcall.S

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23

arch/x86/coco/tdx/tdx.c

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1

arch/x86/include/asm/shared/tdx.h

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