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Re: [Qemu-devel] [PATCH v4 2/4] linux-user: Set PAGE_TARGET_1 for TARGET
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From: |
Richard Henderson |
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Subject: |
Re: [Qemu-devel] [PATCH v4 2/4] linux-user: Set PAGE_TARGET_1 for TARGET_PROT_BTI |
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Date: |
Mon, 29 Apr 2019 13:12:59 -0700 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 |
On 4/29/19 9:21 AM, Peter Maydell wrote:
> This looks ok code-wise, but we'd need to hide it behind
> a defaults-to-off x-something property if we wanted to
> commit it before the kernel ABI is fixed.
I'm not intending to change the user-level abi, only the
internal abi within qemu, for handling of the elf notes.
You think this should be done differently, so that there's
zero possibility of a user-level setting the relevant bit?
> Do we also need to handle this in mprotect() ?
Not until there's a kernel abi.
r~