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Add riscv64 support
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
This commit is contained in:
Andrea Bolognani
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a0dbec9c2a
commit
5ce10e3473
5 changed files with 159 additions and 1 deletions
72
0281-loader-efi-Fix-RISC-V-build.patch
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72
0281-loader-efi-Fix-RISC-V-build.patch
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@ -0,0 +1,72 @@
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Andrea Bolognani <abologna@redhat.com>
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Date: Tue, 19 Nov 2024 15:42:01 +0000
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Subject: [PATCH] loader/efi: Fix RISC-V build
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Some struct definitions are currently limited to 32-bit and
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64-bit Arm architectures, but they actually apply to other
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architectures as well, specifically 32-bit and 64-bit RISC-V
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respectively.
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Update the preprocessor checks guarding their definition, and
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change their names to make them more accurate by replacing the
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word "arm" with the word "efi".
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Signed-off-by: Andrea Bolognani <abologna@redhat.com>
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---
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grub-core/loader/efi/linux.c | 2 +-
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include/grub/efi/efi.h | 12 ++++++------
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2 files changed, 7 insertions(+), 7 deletions(-)
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diff --git a/grub-core/loader/efi/linux.c b/grub-core/loader/efi/linux.c
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index 5889e3f36f8..ef55556f2d9 100644
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--- a/grub-core/loader/efi/linux.c
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+++ b/grub-core/loader/efi/linux.c
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@@ -684,7 +684,7 @@ parse_pe_header (void *kernel, grub_uint64_t *total_size,
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grub_uint32_t *alignment, grub_uint32_t *code_size)
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{
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struct linux_arch_kernel_header *lh = kernel;
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- struct grub_armxx_linux_pe_header *pe;
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+ struct grub_efixx_linux_pe_header *pe;
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grub_uint16_t i;
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struct grub_pe32_section_table *sections;
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diff --git a/include/grub/efi/efi.h b/include/grub/efi/efi.h
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index 7eed1bd791d..81daf6bead1 100644
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--- a/include/grub/efi/efi.h
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+++ b/include/grub/efi/efi.h
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@@ -36,28 +36,28 @@ struct linux_arch_kernel_header {
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struct grub_pe_image_header pe_image_header;
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};
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-struct grub_arm_linux_pe_header
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+struct grub_efi32_linux_pe_header
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{
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grub_uint32_t magic;
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struct grub_pe32_coff_header coff;
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struct grub_pe32_optional_header opt;
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};
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-struct grub_arm64_linux_pe_header
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+struct grub_efi64_linux_pe_header
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{
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grub_uint32_t magic;
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struct grub_pe32_coff_header coff;
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struct grub_pe64_optional_header opt;
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};
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-#if defined(__arm__)
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+#if defined(__arm__) || (defined(__riscv) && (__riscv_xlen == 32))
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# define GRUB_PE32_PEXX_MAGIC GRUB_PE32_PE32_MAGIC
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-# define grub_armxx_linux_pe_header grub_arm_linux_pe_header
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+# define grub_efixx_linux_pe_header grub_efi32_linux_pe_header
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#endif
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-#if defined(__aarch64__)
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+#if defined(__aarch64__) || (defined(__riscv) && (__riscv_xlen == 64))
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# define GRUB_PE32_PEXX_MAGIC GRUB_PE32_PE64_MAGIC
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-# define grub_armxx_linux_pe_header grub_arm64_linux_pe_header
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+# define grub_efixx_linux_pe_header grub_efi64_linux_pe_header
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#endif
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#define GRUB_EFI_GRUB_VARIABLE_GUID \
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@ -0,0 +1,44 @@
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
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Date: Mon, 12 Aug 2024 16:13:18 +0200
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Subject: [PATCH] kern/riscv/efi/init: Use time register in
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grub_efi_get_time_ms()
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The cycle register is not guaranteed to count at constant frequency.
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If it is counting at all depends on the state the performance monitoring
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unit. Use the time register to measure time.
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Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
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Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
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---
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grub-core/kern/riscv/efi/init.c | 15 +++++++--------
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1 file changed, 7 insertions(+), 8 deletions(-)
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diff --git a/grub-core/kern/riscv/efi/init.c b/grub-core/kern/riscv/efi/init.c
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index 38795fe6741..0d7de4f541a 100644
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--- a/grub-core/kern/riscv/efi/init.c
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+++ b/grub-core/kern/riscv/efi/init.c
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@@ -33,16 +33,15 @@ grub_efi_get_time_ms (void)
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grub_uint64_t tmr;
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#if __riscv_xlen == 64
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- asm volatile ("rdcycle %0" : "=r" (tmr));
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+ asm volatile ("rdtime %0" : "=r"(tmr));
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#else
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grub_uint32_t lo, hi, tmp;
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- asm volatile (
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- "1:\n"
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- "rdcycleh %0\n"
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- "rdcycle %1\n"
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- "rdcycleh %2\n"
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- "bne %0, %2, 1b"
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- : "=&r" (hi), "=&r" (lo), "=&r" (tmp));
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+ asm volatile ("1:\n"
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+ "rdtimeh %0\n"
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+ "rdtime %1\n"
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+ "rdtimeh %2\n"
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+ "bne %0, %2, 1b"
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+ : "=&r" (hi), "=&r" (lo), "=&r" (tmp));
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tmr = ((grub_uint64_t)hi << 32) | lo;
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#endif
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36
0283-Use-medany-instead-of-large-model-for-RISCV.patch
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36
0283-Use-medany-instead-of-large-model-for-RISCV.patch
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@ -0,0 +1,36 @@
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jason Montleon <jason@montleon.com>
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Date: Fri, 3 May 2024 13:18:37 -0400
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Subject: [PATCH] Use medany instead of large model for RISCV
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Signed-off-by: Jason Montleon <jason@montleon.com>
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---
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configure.ac | 6 ++++--
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1 file changed, 4 insertions(+), 2 deletions(-)
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diff --git a/configure.ac b/configure.ac
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index 4788f3d6adc..a6a6957fbdb 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -1313,7 +1313,7 @@ AC_SUBST(TARGET_LDFLAGS_OLDMAGIC)
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LDFLAGS="$TARGET_LDFLAGS"
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-if test "$target_cpu" = x86_64 || test "$target_cpu" = sparc64 || test "$target_cpu" = riscv64 ; then
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+if test "$target_cpu" = x86_64 || test "$target_cpu" = sparc64 ; then
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# Use large model to support 4G memory
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AC_CACHE_CHECK([whether option -mcmodel=large works], grub_cv_cc_mcmodel, [
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CFLAGS="$TARGET_CFLAGS -mcmodel=large"
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@@ -1323,9 +1323,11 @@ if test "$target_cpu" = x86_64 || test "$target_cpu" = sparc64 || test "$target_
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])
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if test "x$grub_cv_cc_mcmodel" = xyes; then
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TARGET_CFLAGS="$TARGET_CFLAGS -mcmodel=large"
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- elif test "$target_cpu" = sparc64 || test "$target_cpu" = riscv64; then
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+ elif test "$target_cpu" = sparc64; then
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TARGET_CFLAGS="$TARGET_CFLAGS -mcmodel=medany"
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fi
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+elif test "$target_cpu" = riscv64 ; then
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+ TARGET_CFLAGS="$TARGET_CFLAGS -mcmodel=medany"
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fi
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if test "$target_cpu"-"$platform" = x86_64-efi; then
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@ -278,3 +278,6 @@ Patch0277: 0277-Stop-grub.efi-from-always-printing-dynamic_load_symb.patch
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Patch0278: 0278-acpi-Fix-out-of-bounds-access-in-grub_acpi_xsdt_find.patch
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Patch0279: 0279-cmd-search-Fix-a-possible-NULL-ptr-dereference.patch
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Patch0280: 0280-Enable-building-blscfg-module-on-xen-and-xen_pvh.patch
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Patch0281: 0281-loader-efi-Fix-RISC-V-build.patch
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Patch0282: 0282-kern-riscv-efi-init-Use-time-register-in-grub_efi_ge.patch
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Patch0283: 0283-Use-medany-instead-of-large-model-for-RISCV.patch
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@ -17,7 +17,7 @@
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Name: grub2
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Epoch: 1
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Version: 2.12
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Release: 14%{?dist}
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Release: 15%{?dist}
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Summary: Bootloader with support for Linux, Multiboot and more
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License: GPL-3.0-or-later
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URL: http://www.gnu.org/software/grub/
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@ -602,6 +602,9 @@ mv ${EFI_HOME}/grub.cfg.stb ${EFI_HOME}/grub.cfg
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%endif
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%changelog
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* Thu Nov 21 2024 Andrea Bolognani <abologna@redhat.com> 2.12-15
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- Add riscv64 support (thanks Jason Montleon)
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* Wed Nov 20 2024 Nicolas Frayer <nfrayer@redhat.com> 2.12-14
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- Build modules for Xen PV and PVH
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