]> xenbits.xensource.com Git - xen.git/commit
docs/hypercall-abi: State that the hypercall page is optional
authorAndrew Cooper <andrew.cooper3@citrix.com>
Thu, 11 Apr 2024 14:37:57 +0000 (15:37 +0100)
committerAndrew Cooper <andrew.cooper3@citrix.com>
Fri, 12 Apr 2024 14:50:28 +0000 (15:50 +0100)
commitc0f890cd9d5fd2c17a1e3110cb26f98c90ce8429
treed6783fc36924ff7134ce658a883744fe962b7c7b
parentcfb922bb7d6945eb4d33a910d78b506ae0af14fa
docs/hypercall-abi: State that the hypercall page is optional

Xen doesn't care (and indeed, cannot feasibly tell) whether a hypercall was
initiated using the hypercall page or not.

For SEV-SNP/TDX encrypted VMs, use of a hypercall page would violate the
integrity properties wanted.

Explicitly state that the hypercall page is optional.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
docs/guest-guide/x86/hypercall-abi.rst