On Wed, Apr 23, 2025 at 06:05:19PM +0200, Jürgen Groß wrote: > > It's not a major change, but when it is patched to use the immediate > > form MSR write instruction, it's straightforwardly streamlined. > > It should be rather easy to switch the current wrmsr/rdmsr paravirt patching > locations to use the rdmsr/wrmsr instructions instead of doing a call to > native_*msr().
Right, just make the Xen functions asm stubs that expect the instruction registers instead of C-abi and ALT_NOT_XEN the thing. Shouldn't be hard at all.
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