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protos/limine: Implement x86-64 Keep IOMMU feature

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Mintsuki
2026-02-20 21:45:34 +01:00
parent 9fed600b1b
commit 928f18905c
2 changed files with 22 additions and 2 deletions
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2
bootstrap
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@@ -85,7 +85,7 @@ if ! test -f version; then
clone_repo_commit \
https://codeberg.org/Limine/limine-protocol.git \
limine-protocol \
c76af54a01663d89a74c35b725f79d8af77eb811
aa0fe82730f9a6ea09794503cdf6361be15d66a6
clone_repo_commit \
https://codeberg.org/PicoEFI/PicoEFI.git \

22
common/protos/limine.c
View File

@@ -904,6 +904,24 @@ FEAT_START
entrypoint_request->response = reported_addr(entrypoint_response);
FEAT_END
// x86-64 Keep IOMMU feature
#if defined (__x86_64__) || defined (__i386__)
bool keep_iommu = false;
FEAT_START
struct limine_x86_64_keep_iommu_request *keep_iommu_request =
get_request(LIMINE_X86_64_KEEP_IOMMU_REQUEST_ID);
if (keep_iommu_request == NULL) {
break;
}
struct limine_x86_64_keep_iommu_response *keep_iommu_response =
ext_mem_alloc(sizeof(struct limine_x86_64_keep_iommu_response));
keep_iommu_request->response = reported_addr(keep_iommu_response);
keep_iommu = true;
FEAT_END
#endif
// Bootloader info feature
FEAT_START
struct limine_bootloader_info_request *bootloader_info_request = get_request(LIMINE_BOOTLOADER_INFO_REQUEST_ID);
@@ -1666,7 +1684,9 @@ FEAT_END
rm_int(0x15, &r, &r);
#endif
iommu_disable_all();
if (!keep_iommu) {
iommu_disable_all();
}
pic_mask_all();
io_apic_mask_all(base_revision >= 5);