Peter Maydell 5c93f43eb9 target/arm: Implement ARMv8.1-PMU extension ... The ARMv8.1-PMU extension requires: * the evtCount field in PMETYPER<n>_EL0 is 16 bits, not 10 * MDCR_EL2.HPMD allows event counting to be disabled at EL2 * two new required events, STALL_FRONTEND and STALL_BACKEND * ID register bits in ID_AA64DFR0_EL1 and ID_DFR0 We already implement the 16-bit evtCount field and the HPMD bit, so all that is missing is the two new events: STALL_FRONTEND "counts every cycle counted by the CPU_CYCLES event on which no operation was issued because there are no operations available to issue to this PE from the frontend" STALL_BACKEND "counts every cycle counted by the CPU_CYCLES event on which no operation was issued because the backend is unable to accept any available operations from the frontend" QEMU never stalls in this sense, so our implementation is trivial: always return a zero count. Backports commit 0727f63b1ecf765ebc48266f616f8fc362dc7fbc from qemu		2020-03-21 18:34:33 -04:00
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arm	target/arm: Implement ARMv8.1-PMU extension	2020-03-21 18:34:33 -04:00
i386	target/i386: Add the 'model-id' for Skylake -v3 CPU models	2020-03-21 12:27:24 -04:00
m68k	m68k: Fix regression causing Single-Step via GDB/RSP to not single step	2020-03-21 12:15:08 -04:00
mips	target/arm: fix TCG leak for fcvt half->double	2020-03-21 13:14:47 -04:00
riscv	target/riscv: update mstatus.SD when FS is set dirty	2020-03-21 12:22:56 -04:00
sparc	target/sparc: sun4u Invert Endian TTE bit	2020-01-07 19:21:30 -05:00