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| author | Jan Beulich <jbeulich@suse.com> | 2021-09-30 14:16:15 +0200 |
|---|---|---|
| committer | Juergen Gross <jgross@suse.com> | 2021-10-05 08:35:48 +0200 |
| commit | 9172b5c4a778da1f855b2e3780b1afabb3cfd523 (patch) | |
| tree | de8a256131f75e448785967fbcba9bad15f907d4 /arch/x86/include/asm/xen/pci.h | |
| parent | 97315723c463679a9ecf803d6479fca24c3efda0 (diff) | |
xen/x86: prevent PVH type from getting clobbered
Like xen_start_flags, xen_domain_type gets set before .bss gets cleared.
Hence this variable also needs to be prevented from getting put in .bss,
which is possible because XEN_NATIVE is an enumerator evaluating to
zero. Any use prior to init_hvm_pv_info() setting the variable again
would lead to wrong decisions; one such case is xenboot_console_setup()
when called as a result of "earlyprintk=xen".
Use __ro_after_init as more applicable than either __section(".data") or
__read_mostly.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/d301677b-6f22-5ae6-bd36-458e1f323d0b@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Diffstat (limited to 'arch/x86/include/asm/xen/pci.h')
0 files changed, 0 insertions, 0 deletions