diff options
| author | Juergen Gross <jgross@suse.com> | 2023-02-07 08:59:02 +0100 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2023-03-06 09:41:37 +0100 |
| commit | c9ae1b10d9561012a222e05f0d3ab4e93d301f06 (patch) | |
| tree | 595ac62963b2b659ef304b5ba51d41d27cacc87c /arch/x86/kernel/paravirt.c | |
| parent | fe15c26ee26efa11741a7b632e9f23b01aca4cc6 (diff) | |
x86/paravirt: Merge activate_mm() and dup_mmap() callbacks
The two paravirt callbacks .mmu.activate_mm() and .mmu.dup_mmap() are
sharing the same implementations in all cases: for Xen PV guests they
are pinning the PGD of the new mm_struct, and for all other cases they
are a NOP.
In the end, both callbacks are meant to register an address space with
the underlying hypervisor, so there needs to be only a single callback
for that purpose.
So merge them to a common callback .mmu.enter_mmap() (in contrast to the
corresponding already existing .mmu.exit_mmap()).
As the first parameter of the old callbacks isn't used, drop it from the
replacement one.
[ bp: Remove last occurrence of paravirt_activate_mm() in
asm/mmu_context.h ]
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: Srivatsa S. Bhat (VMware) <srivatsa@csail.mit.edu>
Link: https://lore.kernel.org/r/20230207075902.7539-1-jgross@suse.com
Diffstat (limited to 'arch/x86/kernel/paravirt.c')
| -rw-r--r-- | arch/x86/kernel/paravirt.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c index 42e182868873..0e68a31be7c1 100644 --- a/arch/x86/kernel/paravirt.c +++ b/arch/x86/kernel/paravirt.c @@ -363,8 +363,7 @@ struct paravirt_patch_template pv_ops = { .mmu.make_pte = PTE_IDENT, .mmu.make_pgd = PTE_IDENT, - .mmu.dup_mmap = paravirt_nop, - .mmu.activate_mm = paravirt_nop, + .mmu.enter_mmap = paravirt_nop, .mmu.lazy_mode = { .enter = paravirt_nop, |