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Commit 622f202a authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 

Pull x86 fixes from Ingo Molnar:
 "This fixes a couple of nasty page table initialization bugs which were
  causing kdump regressions.  A clean rearchitecturing of the code is in
  the works - meanwhile these are reverts that restore the
  best-known-working state of the kernel.

  There's also EFI fixes and other small fixes."

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, mm: Undo incorrect revert in arch/x86/mm/init.c
  x86: efi: Turn off efi_enabled after setup on mixed fw/kernel
  x86, mm: Find_early_table_space based on ranges that are actually being mapped
  x86, mm: Use memblock memory loop instead of e820_RAM
  x86, mm: Trim memory in memblock to be page aligned
  x86/irq/ioapic: Check for valid irq_cfg pointer in smp_irq_move_cleanup_interrupt
  x86/efi: Fix oops caused by incorrect set_memory_uc() usage
  x86-64: Fix page table accounting
  Revert "x86/mm: Fix the size calculation of mapping tables"
  MAINTAINERS: Add EFI git repository location
parents 6a2e52f8 8b724e2a

MAINTAINERS

+1 −0
Original line number Diff line number Diff line
@@ -2802,6 +2802,7 @@ F: sound/usb/misc/ua101.c 
EXTENSIBLE FIRMWARE INTERFACE (EFI)

M:	Matt Fleming <matt.fleming@intel.com>

L:	linux-efi@vger.kernel.org

T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi.git

S:	Maintained

F:	Documentation/x86/efi-stub.txt

F:	arch/ia64/kernel/efi.c

arch/x86/include/asm/efi.h

+4 −2
Original line number Diff line number Diff line
@@ -35,7 +35,7 @@ extern unsigned long asmlinkage efi_call_phys(void *, ...); 
#define efi_call_virt6(f, a1, a2, a3, a4, a5, a6)	\

	efi_call_virt(f, a1, a2, a3, a4, a5, a6)



#define efi_ioremap(addr, size, type)		ioremap_cache(addr, size)

#define efi_ioremap(addr, size, type, attr)	ioremap_cache(addr, size)



#else /* !CONFIG_X86_32 */
@@ -89,7 +89,7 @@ extern u64 efi_call6(void *fp, u64 arg1, u64 arg2, u64 arg3, 
		  (u64)(a3), (u64)(a4), (u64)(a5), (u64)(a6))



extern void __iomem *efi_ioremap(unsigned long addr, unsigned long size,

				 u32 type);

				 u32 type, u64 attribute);



#endif /* CONFIG_X86_32 */
@@ -98,6 +98,8 @@ extern void efi_set_executable(efi_memory_desc_t *md, bool executable); 
extern int efi_memblock_x86_reserve_range(void);

extern void efi_call_phys_prelog(void);

extern void efi_call_phys_epilog(void);

extern void efi_unmap_memmap(void);

extern void efi_memory_uc(u64 addr, unsigned long size);



#ifndef CONFIG_EFI

/*

arch/x86/kernel/apic/io_apic.c

+3 −0
Original line number Diff line number Diff line
@@ -2257,6 +2257,9 @@ asmlinkage void smp_irq_move_cleanup_interrupt(void) 
			continue;



		cfg = irq_cfg(irq);

		if (!cfg)

			continue;



		raw_spin_lock(&desc->lock);



		/*

arch/x86/kernel/e820.c

+3 −0
Original line number Diff line number Diff line
@@ -1077,6 +1077,9 @@ void __init memblock_x86_fill(void) 
		memblock_add(ei->addr, ei->size);

	}



	/* throw away partial pages */

	memblock_trim_memory(PAGE_SIZE);



	memblock_dump_all();

}

arch/x86/kernel/setup.c

+20 −7
Original line number Diff line number Diff line
@@ -921,18 +921,19 @@ void __init setup_arch(char **cmdline_p) 
#ifdef CONFIG_X86_64

	if (max_pfn > max_low_pfn) {

		int i;

		for (i = 0; i < e820.nr_map; i++) {

			struct e820entry *ei = &e820.map[i];

		unsigned long start, end;

		unsigned long start_pfn, end_pfn;



			if (ei->addr + ei->size <= 1UL << 32)

				continue;

		for_each_mem_pfn_range(i, MAX_NUMNODES, &start_pfn, &end_pfn,

							 NULL) {



			if (ei->type == E820_RESERVED)

			end = PFN_PHYS(end_pfn);

			if (end <= (1UL<<32))

				continue;



			start = PFN_PHYS(start_pfn);

			max_pfn_mapped = init_memory_mapping(

				ei->addr < 1UL << 32 ? 1UL << 32 : ei->addr,

				ei->addr + ei->size);

						max((1UL<<32), start), end);

		}



		/* can we preseve max_low_pfn ?*/
@@ -1048,6 +1049,18 @@ void __init setup_arch(char **cmdline_p) 
	arch_init_ideal_nops();



	register_refined_jiffies(CLOCK_TICK_RATE);



#ifdef CONFIG_EFI

	/* Once setup is done above, disable efi_enabled on mismatched

	 * firmware/kernel archtectures since there is no support for

	 * runtime services.

	 */

	if (efi_enabled && IS_ENABLED(CONFIG_X86_64) != efi_64bit) {

		pr_info("efi: Setup done, disabling due to 32/64-bit mismatch\n");

		efi_unmap_memmap();

		efi_enabled = 0;

	}

#endif

}



#ifdef CONFIG_X86_32