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Date: Tue, 23 Apr 2019 09:30:04 +0800 From: Lianbo Jiang <lijiang@...hat.com> To: linux-kernel@...r.kernel.org Cc: kexec@...ts.infradead.org, tglx@...utronix.de, mingo@...hat.com, bp@...en8.de, akpm@...ux-foundation.org, dave.hansen@...ux.intel.com, luto@...nel.org, peterz@...radead.org, x86@...nel.org, hpa@...or.com, dyoung@...hat.com, bhe@...hat.com, Thomas.Lendacky@....com Subject: [PATCH 0/3 v11] add reserved e820 ranges to the kdump kernel e820 table This patchset did three things: a). x86/e820, resource: add a new I/O resource descriptor 'IORES_DESC_ RESERVED' b). x86/mm: change the check condition in SEV because a new descriptor is introduced c). x86/kexec_file: add reserved e820 ranges to kdump kernel e820 table Changes since v1: 1. Modified the value of flags to "0", when walking through the whole tree for e820 reserved ranges. Changes since v2: 1. Modified the value of flags to "0", when walking through the whole tree for e820 reserved ranges. 2. Modified the invalid SOB chain issue. Changes since v3: 1. Dropped [PATCH 1/3 v3] resource: fix an error which walks through iomem resources. Please refer to this commit <010a93bf97c7> "resource: Fix find_next_iomem_res() iteration issue" Changes since v4: 1. Improve the patch log, and add kernel log. Changes since v5: 1. Rewrite these patches log. Changes since v6: 1. Modify the [PATCH 1/2], and add the new I/O resource descriptor 'IORES_DESC_RESERVED' for the iomem resources search interfaces, and also updates these codes relates to 'IORES_DESC_NONE'. 2. Modify the [PATCH 2/2], and walk through io resource based on the new descriptor 'IORES_DESC_RESERVED'. 3. Update patch log. Changes since v7: 1. Improve patch log. 2. Improve this function __ioremap_check_desc_other(). 3. Modify code comment in the __ioremap_check_desc_other() Changes since v8: 1. Get rid of all changes about ia64.(Borislav's suggestion) 2. Change the examination condition to the 'IORES_DESC_ACPI_*'. 3. Modify the signature. This patch(add the new I/O resource descriptor 'IORES_DESC_RESERVED') was suggested by Boris. Changes since v9: 1. Improve patch log. 2. No need to modify the kernel/resource.c, so correct them. 3. Change the name of the __ioremap_check_desc_other() to __ioremap_check_desc_none_and_reserved(), and modify the check condition, add comment above it. Changes since v10: 1. Split them into three patches, the second patch is currently added. 2. Change struct ioremap_mem_flags to struct ioremap_desc and redefine it. 3. Change the name of the __ioremap_check_desc_other() to __ioremap_check_desc(). 4. Change the check condition in SEV and also improve them. 5. Modify the return value for some functions. Lianbo Jiang (3): x86/e820, resource: add a new I/O resource descriptor 'IORES_DESC_RESERVED' x86/mm: change the check condition in SEV because a new descriptor is introduced x86/kexec_file: add reserved e820 ranges to kdump kernel e820 table arch/x86/kernel/crash.c | 6 +++++ arch/x86/kernel/e820.c | 2 +- arch/x86/mm/ioremap.c | 59 ++++++++++++++++++++++++++--------------- include/linux/ioport.h | 10 +++++++ 4 files changed, 54 insertions(+), 23 deletions(-) -- 2.17.1
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