Ram Pai 256ba2c168 powerpc/pseries/svm: Unshare all pages before kexecing a new kernel ... A new kernel deserves a clean slate. Any pages shared with the hypervisor is unshared before invoking the new kernel. However there are exceptions. If the new kernel is invoked to dump the current kernel, or if there is a explicit request to preserve the state of the current kernel, unsharing of pages is skipped. NOTE: While testing crashkernel, make sure at least 256M is reserved for crashkernel. Otherwise SWIOTLB allocation will fail and crash kernel will fail to boot. Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Thiago Jung Bauermann <bauerman@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20190820021326.6884-11-bauerman@linux.ibm.com		2019-08-30 09:55:40 +10:00
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asm	powerpc/pseries/svm: Unshare all pages before kexecing a new kernel	2019-08-30 09:55:40 +10:00
uapi/asm	SPDX fixes for 5.3-rc2	2019-07-28 10:00:06 -07:00