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| author | David Brazdil <dbrazdil@google.com> | 2020-12-02 21:41:08 +0300 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2020-12-04 13:08:33 +0300 |
| commit | 2d7bf218ca739554bf7277ab0dbfa5399d01f7c6 (patch) | |
| tree | bc3a4579e07a6737c4a7114dacd8114cfcc7648b /arch/arm64/include/asm/sections.h | |
| parent | d3e1086c64528ee0b955326b4c0e947cde3b6923 (diff) | |
| download | linux-2d7bf218ca739554bf7277ab0dbfa5399d01f7c6.tar.xz | |
KVM: arm64: Add .hyp.data..ro_after_init ELF section
Add rules for renaming the .data..ro_after_init ELF section in KVM nVHE
object files to .hyp.data..ro_after_init, linking it into the kernel
and mapping it in hyp at runtime.
The section is RW to the host, then mapped RO in hyp. The expectation is
that the host populates the variables in the section and they are never
changed by hyp afterwards.
Signed-off-by: David Brazdil <dbrazdil@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20201202184122.26046-13-dbrazdil@google.com
Diffstat (limited to 'arch/arm64/include/asm/sections.h')
| -rw-r--r-- | arch/arm64/include/asm/sections.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/sections.h b/arch/arm64/include/asm/sections.h index 3994169985ef..8ff579361731 100644 --- a/arch/arm64/include/asm/sections.h +++ b/arch/arm64/include/asm/sections.h @@ -11,6 +11,7 @@ extern char __alt_instructions[], __alt_instructions_end[]; extern char __hibernate_exit_text_start[], __hibernate_exit_text_end[]; extern char __hyp_idmap_text_start[], __hyp_idmap_text_end[]; extern char __hyp_text_start[], __hyp_text_end[]; +extern char __hyp_data_ro_after_init_start[], __hyp_data_ro_after_init_end[]; extern char __idmap_text_start[], __idmap_text_end[]; extern char __initdata_begin[], __initdata_end[]; extern char __inittext_begin[], __inittext_end[]; |