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| author | Pavan Kumar Paluri <papaluri@amd.com> | 2024-10-14 15:09:47 +0200 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2024-10-15 19:54:42 +0200 |
| commit | 4ae47fa7e8f95be17d4ff9c317a1193bbb4a3998 (patch) | |
| tree | 157ce750811ee759598cecfdafb16af481c65c56 /arch/x86/virt | |
| parent | Linux 6.12-rc3 (diff) | |
| download | linux-4ae47fa7e8f95be17d4ff9c317a1193bbb4a3998.tar.xz linux-4ae47fa7e8f95be17d4ff9c317a1193bbb4a3998.zip | |
x86/virt: Move SEV-specific parsing into arch/x86/virt/svm
Move SEV-specific kernel command line option parsing support from
arch/x86/coco/sev/core.c to arch/x86/virt/svm/cmdline.c so that both
host and guest related SEV command line options can be supported.
No functional changes intended.
Signed-off-by: Pavan Kumar Paluri <papaluri@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
Link: https://lore.kernel.org/r/20241014130948.1476946-2-papaluri@amd.com
Diffstat (limited to 'arch/x86/virt')
| -rw-r--r-- | arch/x86/virt/svm/Makefile | 1 | ||||
| -rw-r--r-- | arch/x86/virt/svm/cmdline.c | 33 |
2 files changed, 34 insertions, 0 deletions
diff --git a/arch/x86/virt/svm/Makefile b/arch/x86/virt/svm/Makefile index ef2a31bdcc70..eca6d71355fa 100644 --- a/arch/x86/virt/svm/Makefile +++ b/arch/x86/virt/svm/Makefile @@ -1,3 +1,4 @@ # SPDX-License-Identifier: GPL-2.0 obj-$(CONFIG_KVM_AMD_SEV) += sev.o +obj-$(CONFIG_CPU_SUP_AMD) += cmdline.o diff --git a/arch/x86/virt/svm/cmdline.c b/arch/x86/virt/svm/cmdline.c new file mode 100644 index 000000000000..add4bae3ebef --- /dev/null +++ b/arch/x86/virt/svm/cmdline.c @@ -0,0 +1,33 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * AMD SVM-SEV command line parsing support + * + * Copyright (C) 2023 - 2024 Advanced Micro Devices, Inc. + * + * Author: Michael Roth <michael.roth@amd.com> + */ + +#include <linux/string.h> +#include <linux/printk.h> +#include <linux/cache.h> + +#include <asm/sev-common.h> + +struct sev_config sev_cfg __read_mostly; + +static int __init init_sev_config(char *str) +{ + char *s; + + while ((s = strsep(&str, ","))) { + if (!strcmp(s, "debug")) { + sev_cfg.debug = true; + continue; + } + + pr_info("SEV command-line option '%s' was not recognized\n", s); + } + + return 1; +} +__setup("sev=", init_sev_config); |