diff options
| author | Xin Li (Intel) <xin@zytor.com> | 2024-07-09 17:40:47 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2024-08-13 21:59:21 +0200 |
| commit | 73270c1f2369fb37683121ebe097cd37172602b6 (patch) | |
| tree | 3f8968a3e4c5a021c64e3fa4da8dc8d036d46e03 /arch/x86/kernel/cpu | |
| parent | x86/fred: Parse cmdline param "fred=" in cpu_parse_early_param() (diff) | |
| download | linux-73270c1f2369fb37683121ebe097cd37172602b6.tar.xz linux-73270c1f2369fb37683121ebe097cd37172602b6.zip | |
x86/fred: Move FRED RSP initialization into a separate function
To enable FRED earlier, move the RSP initialization out of
cpu_init_fred_exceptions() into cpu_init_fred_rsps().
This is required as the FRED RSP initialization depends on the availability
of the CPU entry areas which are set up late in trap_init(),
No functional change intended. Marked with Fixes as it's a depedency for
the real fix.
Fixes: 14619d912b65 ("x86/fred: FRED entry/exit and dispatch code")
Signed-off-by: Xin Li (Intel) <xin@zytor.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20240709154048.3543361-3-xin@zytor.com
Diffstat (limited to 'arch/x86/kernel/cpu')
| -rw-r--r-- | arch/x86/kernel/cpu/common.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 10a5402d8297..6de12b3c1b04 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -2195,10 +2195,12 @@ void cpu_init_exception_handling(void) /* GHCB needs to be setup to handle #VC. */ setup_ghcb(); - if (cpu_feature_enabled(X86_FEATURE_FRED)) + if (cpu_feature_enabled(X86_FEATURE_FRED)) { cpu_init_fred_exceptions(); - else + cpu_init_fred_rsps(); + } else { load_current_idt(); + } } /* |