RE: [PATCH v2 5/9] x86/hyperv: Mark ACPI wakeup mailbox page as private

2024-09-02 Thread Michael Kelley
From: Saurabh Singh Sengar Sent: Monday, September 2, 2024 11:39 AM > > On Mon, Sep 02, 2024 at 03:35:18AM +, Michael Kelley wrote: > > From: Yunhong Jiang Sent: Friday, August > > 23, 2024 > 4:23 PM > > > > > > Current code maps MMIO devices as shared (decrypted) by default in a > > > con

Re: [PATCH v2 5/9] x86/hyperv: Mark ACPI wakeup mailbox page as private

2024-09-02 Thread Saurabh Singh Sengar
On Mon, Sep 02, 2024 at 03:35:18AM +, Michael Kelley wrote: > From: Yunhong Jiang Sent: Friday, August 23, > 2024 4:23 PM > > > > Current code maps MMIO devices as shared (decrypted) by default in a > > confidential computing VM. However, the wakeup mailbox must be accessed > > as private (e

RE: [PATCH v2 5/9] x86/hyperv: Mark ACPI wakeup mailbox page as private

2024-09-01 Thread Michael Kelley
From: Yunhong Jiang Sent: Friday, August 23, 2024 4:23 PM > > Current code maps MMIO devices as shared (decrypted) by default in a > confidential computing VM. However, the wakeup mailbox must be accessed > as private (encrypted) because it's accessed by the OS and the firmware, > both are in th