0ff5faf8cd
Implement _gcry_get_hw_features() and enable hardware feature detection for x86_64. Signed-off-by: Gary Lin <glin@suse.com> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
88 lines
2.6 KiB
Diff
88 lines
2.6 KiB
Diff
From 4403c452240417aaac7d3120c80b1325b7218768 Mon Sep 17 00:00:00 2001
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From: Gary Lin <glin@suse.com>
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Date: Fri, 18 Jul 2025 15:21:51 +0800
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Subject: [PATCH 1/4] libgcrypt: Implement _gcry_get_hw_features()
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Implement _gcry_get_hw_features() and enable hardware feature detection
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for x86_64.
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Signed-off-by: Gary Lin <glin@suse.com>
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---
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grub-core/Makefile.gcry.def | 8 ++++
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grub-core/lib/libgcrypt-grub/src/hwfeatures.c | 47 +++++++++++++++++++
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2 files changed, 55 insertions(+)
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create mode 100644 grub-core/lib/libgcrypt-grub/src/hwfeatures.c
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diff --git a/grub-core/Makefile.gcry.def b/grub-core/Makefile.gcry.def
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index a0593fa09..c8caf17dc 100644
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--- a/grub-core/Makefile.gcry.def
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+++ b/grub-core/Makefile.gcry.def
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@@ -226,3 +226,11 @@ module = {
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cppflags = '$(CPPFLAGS_GCRY)';
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};
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+module = {
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+ name = gcry_hwfeatures;
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+ common = lib/libgcrypt-grub/src/hwfeatures.c;
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+ x86_64_efi = lib/libgcrypt-grub/src/hwf-x86.c;
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+
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+ cflags = '$(CFLAGS_GCRY)';
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+ cppflags = '$(CPPFLAGS_GCRY) $(CPPFLAGS_GCRY_ASM)';
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+};
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diff --git a/grub-core/lib/libgcrypt-grub/src/hwfeatures.c b/grub-core/lib/libgcrypt-grub/src/hwfeatures.c
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new file mode 100644
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index 000000000..4d744f8ec
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--- /dev/null
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+++ b/grub-core/lib/libgcrypt-grub/src/hwfeatures.c
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@@ -0,0 +1,47 @@
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+/*
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+ * GRUB -- GRand Unified Bootloader
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+ * Copyright (C) 2025 Free Software Foundation, Inc.
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+ *
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+ * GRUB is free software: you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation, either version 3 of the License, or
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+ * (at your option) any later version.
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+ *
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+ * GRUB is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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+ */
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+
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+#include <grub/dl.h>
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+GRUB_MOD_LICENSE ("GPLv3+");
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+
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+#include <grub/crypto.h>
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+#include <grub/hwfeatures-gcry.h>
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+#include "hwf-common.h"
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+
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+unsigned int
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+_gcry_get_hw_features (void)
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+{
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+ static bool detected = false;
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+ static unsigned int hw_features = 0;
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+
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+ if (grub_gcry_hwf_enabled () == false)
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+ return 0;
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+
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+ if (detected == true)
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+ return hw_features;
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+
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+#if defined (__x86_64__) && defined (GRUB_MACHINE_EFI)
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+ hw_features = _gcry_hwf_detect_x86 ();
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+#endif
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+
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+ grub_dprintf ("hwfeatures", "Detected features: 0x%x\n", hw_features);
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+
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+ detected = true;
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+
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+ return hw_features;
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+}
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--
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2.51.0
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