diff options
| author | Jarkko Sakkinen <jarkko@kernel.org> | 2021-04-08 12:29:24 +0300 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2021-04-08 17:24:42 +0200 |
| commit | ae40aaf6bdbf0354a75b8284a0de453fcf5f4d32 (patch) | |
| tree | 91c9a64b5e7a597003f0290cccc37293f91517c6 /arch/x86/kernel/cpu/sgx/main.c | |
| parent | b3754e5d3da320af2bebb7a690002685c7f5c15c (diff) | |
x86/sgx: Do not update sgx_nr_free_pages in sgx_setup_epc_section()
The commit in Fixes: changed the SGX EPC page sanitization to end up in
sgx_free_epc_page() which puts clean and sanitized pages on the free
list.
This was done for the reason that it is best to keep the logic to assign
available-for-use EPC pages to the correct NUMA lists in a single
location.
sgx_nr_free_pages is also incremented by sgx_free_epc_pages() but those
pages which are being added there per EPC section do not belong to the
free list yet because they haven't been sanitized yet - they land on the
dirty list first and the sanitization happens later when ksgxd starts
massaging them.
So remove that addition there and have sgx_free_epc_page() do that
solely.
[ bp: Sanitize commit message too. ]
Fixes: 51ab30eb2ad4 ("x86/sgx: Replace section->init_laundry_list with sgx_dirty_page_list")
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20210408092924.7032-1-jarkko@kernel.org
Diffstat (limited to 'arch/x86/kernel/cpu/sgx/main.c')
| -rw-r--r-- | arch/x86/kernel/cpu/sgx/main.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/sgx/main.c b/arch/x86/kernel/cpu/sgx/main.c index 92cb11dffd4c..ad904747419e 100644 --- a/arch/x86/kernel/cpu/sgx/main.c +++ b/arch/x86/kernel/cpu/sgx/main.c @@ -656,7 +656,6 @@ static bool __init sgx_setup_epc_section(u64 phys_addr, u64 size, list_add_tail(§ion->pages[i].list, &sgx_dirty_page_list); } - sgx_nr_free_pages += nr_pages; return true; } |