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resource: Provide resource struct in resource walk callback

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In preperation for a new function that will need additional resource
information during the resource walk, update the resource walk callback to
pass the resource structure.  Since the current callback start and end
arguments are pulled from the resource structure, the callback functions
can obtain them from the resource structure directly.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Borislav Petkov <bp@suse.de>
Tested-by: Borislav Petkov <bp@suse.de>
Cc: kvm@vger.kernel.org
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lkml.kernel.org/r/20171020143059.3291-10-brijesh.singh@amd.com
This commit is contained in:
Tom Lendacky
2017-10-20 09:30:51 -05:00
committed by Thomas Gleixner
parent 4ac2aed837
commit 1d2e733b13
7 changed files with 30 additions and 22 deletions
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18
arch/x86/kernel/crash.c
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@@ -209,7 +209,7 @@ void native_machine_crash_shutdown(struct pt_regs *regs)
}
#ifdef CONFIG_KEXEC_FILE
static int get_nr_ram_ranges_callback(u64 start, u64 end, void *arg)
static int get_nr_ram_ranges_callback(struct resource *res, void *arg)
{
unsigned int *nr_ranges = arg;
@@ -342,7 +342,7 @@ static int elf_header_exclude_ranges(struct crash_elf_data *ced,
return ret;
}
static int prepare_elf64_ram_headers_callback(u64 start, u64 end, void *arg)
static int prepare_elf64_ram_headers_callback(struct resource *res, void *arg)
{
struct crash_elf_data *ced = arg;
Elf64_Ehdr *ehdr;
@@ -355,7 +355,7 @@ static int prepare_elf64_ram_headers_callback(u64 start, u64 end, void *arg)
ehdr = ced->ehdr;
/* Exclude unwanted mem ranges */
ret = elf_header_exclude_ranges(ced, start, end);
ret = elf_header_exclude_ranges(ced, res->start, res->end);
if (ret)
return ret;
@@ -518,14 +518,14 @@ static int add_e820_entry(struct boot_params *params, struct e820_entry *entry)
return 0;
}
static int memmap_entry_callback(u64 start, u64 end, void *arg)
static int memmap_entry_callback(struct resource *res, void *arg)
{
struct crash_memmap_data *cmd = arg;
struct boot_params *params = cmd->params;
struct e820_entry ei;
ei.addr = start;
ei.size = end - start + 1;
ei.addr = res->start;
ei.size = res->end - res->start + 1;
ei.type = cmd->type;
add_e820_entry(params, &ei);
@@ -619,12 +619,12 @@ out:
return ret;
}
static int determine_backup_region(u64 start, u64 end, void *arg)
static int determine_backup_region(struct resource *res, void *arg)
{
struct kimage *image = arg;
image->arch.backup_src_start = start;
image->arch.backup_src_sz = end - start + 1;
image->arch.backup_src_start = res->start;
image->arch.backup_src_sz = res->end - res->start + 1;
/* Expecting only one range for backup region */
return 1;