Re: [EXTERNAL] [PATCH] target/ppc: Fix mtmsr(d) L=1 variant that loses interrupts

Cédric Le Goater writes: > On 4/14/20 1:11 PM, Nicholas Piggin wrote: >> If mtmsr L=1 sets MSR[EE] while there is a maskable exception pending, >> it does not cause an interrupt. This causes the test case to hang: >> >> https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.gnu.org_archive

Re: [EXTERNAL] [PATCH] target/ppc: Fix mtmsr(d) L=1 variant that loses interrupts

Excerpts from Cédric Le Goater's message of April 15, 2020 4:49 pm: > On 4/14/20 1:11 PM, Nicholas Piggin wrote: >> >> The confusion arises from L=0 being "context synchronizing" whereas L=1 >> is "execution synchronizing", which is a weaker semantic. However this >> is not a relaxation of the req

Re: [EXTERNAL] [PATCH] target/ppc: Fix mtmsr(d) L=1 variant that loses interrupts

On 4/14/20 1:11 PM, Nicholas Piggin wrote: > If mtmsr L=1 sets MSR[EE] while there is a maskable exception pending, > it does not cause an interrupt. This causes the test case to hang: > > https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.gnu.org_archive_html_qemu-2Dppc_2019-2D10_msg00826