Re: [RFC PATCH v2 15/32] x86: Add support for changing memory encryption attribute in early boot

2017-03-27 Thread Brijesh Singh
Hi Boris, On 03/24/2017 12:12 PM, Borislav Petkov wrote: } +static inline int __init early_set_memory_decrypted(void *addr, + unsigned long size) +{ + return 1; return 1 when !CONFIG_AMD_MEM_ENCRYPT ? The non-early var

Re: [RFC PATCH v2 15/32] x86: Add support for changing memory encryption attribute in early boot

2017-03-24 Thread Borislav Petkov
On Thu, Mar 02, 2017 at 10:15:28AM -0500, Brijesh Singh wrote: > Some KVM-specific custom MSRs shares the guest physical address with > hypervisor. When SEV is active, the shared physical address must be mapped > with encryption attribute cleared so that both hypervsior and guest can > access the d