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The documentation for PROT_MTE says that it cannot be cleared by mprotect. Further, the implementation of the VM_ARCH_CLEAR bit, contains PROT_BTI confiming that bit should be cleared. Introduce PAGE_TARGET_STICKY to allow target/arch/cpu.h to control which bits may be reset during page_set_flags. This is sort of the opposite of VM_ARCH_CLEAR, but works better with qemu's PAGE_* bits that are separate from PROT_* bits. Reported-by: Vitaly Buka <vitalybuka@google.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20220711031420.17820-1-richard.henderson@linaro.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> |
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| accel-common.c | ||
| accel-softmmu.c | ||
| accel-softmmu.h | ||
| accel-user.c | ||
| dummy-cpus.c | ||
| Kconfig | ||
| meson.build | ||