parent
aca7f25415
commit
701bf4b244
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@ -16,6 +16,10 @@ linux (4.9.6-4) UNRELEASED; urgency=medium
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* [armel] ARM: dts: orion5x-lschl: More consistent naming on linkstation
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series
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[ Riku Voipio ]
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* [arm64] Revert "efi/libstub/arm*: Pass latest memory map to the kernel"
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(Closes: #853170)
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-- Ben Hutchings <ben@decadent.org.uk> Fri, 27 Jan 2017 18:14:31 +0000
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linux (4.9.6-3) unstable; urgency=medium
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200
debian/patches/bugfix/arm64/efi-libstub-arm-pass-latest-memory-map-to-the.patch
vendored
Normal file
200
debian/patches/bugfix/arm64/efi-libstub-arm-pass-latest-memory-map-to-the.patch
vendored
Normal file
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@ -0,0 +1,200 @@
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From 1816e2e5003836a142056957f7a813d846eba992 Mon Sep 17 00:00:00 2001
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From: Riku Voipio <riku.voipio@linaro.org>
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Date: Wed, 1 Feb 2017 13:37:49 +0200
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Subject: [PATCH] Revert "efi/libstub/arm*: Pass latest memory map to the
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kernel"
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This reverts commit 74ce3fd64bc44f89856ff57bf684882dc098f93b.
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---
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drivers/firmware/efi/libstub/efistub.h | 8 ++++
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drivers/firmware/efi/libstub/fdt.c | 87 ++++++++++++----------------------
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2 files changed, 39 insertions(+), 56 deletions(-)
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diff --git a/drivers/firmware/efi/libstub/efistub.h b/drivers/firmware/efi/libstub/efistub.h
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index fac67992bede..ee49cd23ee63 100644
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--- a/drivers/firmware/efi/libstub/efistub.h
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+++ b/drivers/firmware/efi/libstub/efistub.h
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@@ -30,6 +30,14 @@ efi_status_t efi_file_close(void *handle);
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unsigned long get_dram_base(efi_system_table_t *sys_table_arg);
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+efi_status_t update_fdt(efi_system_table_t *sys_table, void *orig_fdt,
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+ unsigned long orig_fdt_size,
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+ void *fdt, int new_fdt_size, char *cmdline_ptr,
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+ u64 initrd_addr, u64 initrd_size,
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+ efi_memory_desc_t *memory_map,
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+ unsigned long map_size, unsigned long desc_size,
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+ u32 desc_ver);
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+
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efi_status_t allocate_new_fdt_and_exit_boot(efi_system_table_t *sys_table,
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void *handle,
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unsigned long *new_fdt_addr,
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diff --git a/drivers/firmware/efi/libstub/fdt.c b/drivers/firmware/efi/libstub/fdt.c
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index 921dfa047202..a6a93116a8f0 100644
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--- a/drivers/firmware/efi/libstub/fdt.c
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+++ b/drivers/firmware/efi/libstub/fdt.c
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@@ -16,10 +16,13 @@
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#include "efistub.h"
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-static efi_status_t update_fdt(efi_system_table_t *sys_table, void *orig_fdt,
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- unsigned long orig_fdt_size,
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- void *fdt, int new_fdt_size, char *cmdline_ptr,
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- u64 initrd_addr, u64 initrd_size)
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+efi_status_t update_fdt(efi_system_table_t *sys_table, void *orig_fdt,
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+ unsigned long orig_fdt_size,
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+ void *fdt, int new_fdt_size, char *cmdline_ptr,
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+ u64 initrd_addr, u64 initrd_size,
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+ efi_memory_desc_t *memory_map,
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+ unsigned long map_size, unsigned long desc_size,
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+ u32 desc_ver)
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{
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int node, num_rsv;
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int status;
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@@ -98,23 +101,25 @@ static efi_status_t update_fdt(efi_system_table_t *sys_table, void *orig_fdt,
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if (status)
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goto fdt_set_fail;
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- fdt_val64 = U64_MAX; /* placeholder */
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+ fdt_val64 = cpu_to_fdt64((u64)(unsigned long)memory_map);
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status = fdt_setprop(fdt, node, "linux,uefi-mmap-start",
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&fdt_val64, sizeof(fdt_val64));
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if (status)
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goto fdt_set_fail;
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- fdt_val32 = U32_MAX; /* placeholder */
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+ fdt_val32 = cpu_to_fdt32(map_size);
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status = fdt_setprop(fdt, node, "linux,uefi-mmap-size",
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&fdt_val32, sizeof(fdt_val32));
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if (status)
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goto fdt_set_fail;
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+ fdt_val32 = cpu_to_fdt32(desc_size);
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status = fdt_setprop(fdt, node, "linux,uefi-mmap-desc-size",
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&fdt_val32, sizeof(fdt_val32));
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if (status)
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goto fdt_set_fail;
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+ fdt_val32 = cpu_to_fdt32(desc_ver);
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status = fdt_setprop(fdt, node, "linux,uefi-mmap-desc-ver",
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&fdt_val32, sizeof(fdt_val32));
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if (status)
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@@ -143,43 +148,6 @@ static efi_status_t update_fdt(efi_system_table_t *sys_table, void *orig_fdt,
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return EFI_LOAD_ERROR;
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}
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-static efi_status_t update_fdt_memmap(void *fdt, struct efi_boot_memmap *map)
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-{
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- int node = fdt_path_offset(fdt, "/chosen");
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- u64 fdt_val64;
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- u32 fdt_val32;
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- int err;
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-
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- if (node < 0)
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- return EFI_LOAD_ERROR;
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-
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- fdt_val64 = cpu_to_fdt64((unsigned long)*map->map);
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- err = fdt_setprop_inplace(fdt, node, "linux,uefi-mmap-start",
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- &fdt_val64, sizeof(fdt_val64));
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- if (err)
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- return EFI_LOAD_ERROR;
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-
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- fdt_val32 = cpu_to_fdt32(*map->map_size);
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- err = fdt_setprop_inplace(fdt, node, "linux,uefi-mmap-size",
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- &fdt_val32, sizeof(fdt_val32));
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- if (err)
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- return EFI_LOAD_ERROR;
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-
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- fdt_val32 = cpu_to_fdt32(*map->desc_size);
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- err = fdt_setprop_inplace(fdt, node, "linux,uefi-mmap-desc-size",
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- &fdt_val32, sizeof(fdt_val32));
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- if (err)
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- return EFI_LOAD_ERROR;
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-
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- fdt_val32 = cpu_to_fdt32(*map->desc_ver);
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- err = fdt_setprop_inplace(fdt, node, "linux,uefi-mmap-desc-ver",
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- &fdt_val32, sizeof(fdt_val32));
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- if (err)
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- return EFI_LOAD_ERROR;
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-
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- return EFI_SUCCESS;
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-}
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-
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#ifndef EFI_FDT_ALIGN
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#define EFI_FDT_ALIGN EFI_PAGE_SIZE
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#endif
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@@ -275,10 +243,20 @@ efi_status_t allocate_new_fdt_and_exit_boot(efi_system_table_t *sys_table,
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goto fail;
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}
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+ /*
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+ * Now that we have done our final memory allocation (and free)
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+ * we can get the memory map key needed for
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+ * exit_boot_services().
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+ */
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+ status = efi_get_memory_map(sys_table, &map);
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+ if (status != EFI_SUCCESS)
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+ goto fail_free_new_fdt;
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+
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status = update_fdt(sys_table,
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(void *)fdt_addr, fdt_size,
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(void *)*new_fdt_addr, new_fdt_size,
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- cmdline_ptr, initrd_addr, initrd_size);
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+ cmdline_ptr, initrd_addr, initrd_size,
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+ memory_map, map_size, desc_size, desc_ver);
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/* Succeeding the first time is the expected case. */
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if (status == EFI_SUCCESS)
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@@ -288,16 +266,20 @@ efi_status_t allocate_new_fdt_and_exit_boot(efi_system_table_t *sys_table,
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/*
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* We need to allocate more space for the new
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* device tree, so free existing buffer that is
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- * too small.
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+ * too small. Also free memory map, as we will need
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+ * to get new one that reflects the free/alloc we do
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+ * on the device tree buffer.
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*/
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efi_free(sys_table, new_fdt_size, *new_fdt_addr);
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+ sys_table->boottime->free_pool(memory_map);
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new_fdt_size += EFI_PAGE_SIZE;
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} else {
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pr_efi_err(sys_table, "Unable to construct new device tree.\n");
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- goto fail_free_new_fdt;
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+ goto fail_free_mmap;
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}
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}
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+ sys_table->boottime->free_pool(memory_map);
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priv.runtime_map = runtime_map;
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priv.runtime_entry_count = &runtime_entry_count;
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status = efi_exit_boot_services(sys_table, handle, &map, &priv,
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@@ -306,16 +288,6 @@ efi_status_t allocate_new_fdt_and_exit_boot(efi_system_table_t *sys_table,
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if (status == EFI_SUCCESS) {
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efi_set_virtual_address_map_t *svam;
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- status = update_fdt_memmap((void *)*new_fdt_addr, &map);
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- if (status != EFI_SUCCESS) {
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- /*
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- * The kernel won't get far without the memory map, but
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- * may still be able to print something meaningful so
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- * return success here.
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- */
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- return EFI_SUCCESS;
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- }
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-
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/* Install the new virtual address map */
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svam = sys_table->runtime->set_virtual_address_map;
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status = svam(runtime_entry_count * desc_size, desc_size,
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@@ -347,6 +319,9 @@ efi_status_t allocate_new_fdt_and_exit_boot(efi_system_table_t *sys_table,
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pr_efi_err(sys_table, "Exit boot services failed.\n");
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+fail_free_mmap:
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+ sys_table->boottime->free_pool(memory_map);
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+
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fail_free_new_fdt:
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efi_free(sys_table, new_fdt_size, *new_fdt_addr);
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--
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2.11.0
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@ -47,6 +47,7 @@ debian/fanotify-taint-on-use-of-fanotify_access_permissions.patch
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# Arch bug fixes
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bugfix/x86/asoc-intel-select-dw_dmac_core-since-it-s-mandatory.patch
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bugfix/arm64/efi-libstub-arm-pass-latest-memory-map-to-the.patch
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# Arch features
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features/mips/MIPS-increase-MAX-PHYSMEM-BITS-on-Loongson-3-only.patch
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Loading…
Reference in New Issue