xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge branch 'irq/urgent' into x86/apic

Browse Source 
Pick up core changes which affect the vector rework.
This commit is contained in:
Thomas Gleixner
2017-10-12 11:02:50 +02:00
parent 79761ce80a e43b3b5854
commit 331b57d148
640 changed files with 7026 additions and 4353 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
arch/x86/xen/mmu_pv.c
View File

@@ -1238,21 +1238,16 @@ static void __init xen_pagetable_cleanhighmap(void)
* from _brk_limit way up to the max_pfn_mapped (which is the end of
* the ramdisk). We continue on, erasing PMD entries that point to page
* tables - do note that they are accessible at this stage via __va.
* For good measure we also round up to the PMD - which means that if
* As Xen is aligning the memory end to a 4MB boundary, for good
* measure we also round up to PMD_SIZE * 2 - which means that if
* anybody is using __ka address to the initial boot-stack - and try
* to use it - they are going to crash. The xen_start_info has been
* taken care of already in xen_setup_kernel_pagetable. */
addr = xen_start_info->pt_base;
size = roundup(xen_start_info->nr_pt_frames * PAGE_SIZE, PMD_SIZE);
size = xen_start_info->nr_pt_frames * PAGE_SIZE;
xen_cleanhighmap(addr, addr + size);
xen_cleanhighmap(addr, roundup(addr + size, PMD_SIZE * 2));
xen_start_info->pt_base = (unsigned long)__va(__pa(xen_start_info->pt_base));
#ifdef DEBUG
/* This is superfluous and is not necessary, but you know what
* lets do it. The MODULES_VADDR -> MODULES_END should be clear of
* anything at this stage. */
xen_cleanhighmap(MODULES_VADDR, roundup(MODULES_VADDR, PUD_SIZE) - 1);
#endif
}
#endif