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| author | Peter Maydell <peter.maydell@linaro.org> | 2022-01-22 18:24:44 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2022-01-28 14:29:47 +0000 |
| commit | 961b4912c1330aaf11a354c9d8f5c63e1ba0ae3b (patch) | |
| tree | 449f3cfa2c88793690ec54731f4bfc28837f480d /hw/intc/gicv3_internal.h | |
| parent | f6d1d9b4074d64de92f3ab4dfa50dc19548fdfd7 (diff) | |
| download | focaccia-qemu-961b4912c1330aaf11a354c9d8f5c63e1ba0ae3b.tar.gz focaccia-qemu-961b4912c1330aaf11a354c9d8f5c63e1ba0ae3b.zip | |
hw/intc/arm_gicv3_its: Implement MOVI
Implement the ITS MOVI command. This command specifies a (physical) LPI by DeviceID and EventID and provides a new ICID for it. The ITS must find the interrupt translation table entry for the LPI, which will tell it the old ICID. It then moves the pending state of the LPI from the old redistributor to the new one and updates the ICID field in the translation table entry. This is another GICv3 ITS command that we forgot to implement. Linux does use this one, but only if the guest powers off one of its CPUs. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20220122182444.724087-15-peter.maydell@linaro.org
Diffstat (limited to 'hw/intc/gicv3_internal.h')
| -rw-r--r-- | hw/intc/gicv3_internal.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/hw/intc/gicv3_internal.h b/hw/intc/gicv3_internal.h index da45975d92..b1af26df9f 100644 --- a/hw/intc/gicv3_internal.h +++ b/hw/intc/gicv3_internal.h @@ -315,6 +315,7 @@ FIELD(GITS_TYPER, CIL, 36, 1) #define CMD_MASK 0xff /* ITS Commands */ +#define GITS_CMD_MOVI 0x01 #define GITS_CMD_INT 0x03 #define GITS_CMD_CLEAR 0x04 #define GITS_CMD_SYNC 0x05 @@ -360,6 +361,11 @@ FIELD(MAPC, RDBASE, 16, 32) FIELD(MOVALL_2, RDBASE1, 16, 36) FIELD(MOVALL_3, RDBASE2, 16, 36) +/* MOVI command fields */ +FIELD(MOVI_0, DEVICEID, 32, 32) +FIELD(MOVI_1, EVENTID, 0, 32) +FIELD(MOVI_2, ICID, 0, 16) + /* * 12 bytes Interrupt translation Table Entry size * as per Table 5.3 in GICv3 spec @@ -503,6 +509,16 @@ void gicv3_redist_update_lpi(GICv3CPUState *cs); */ void gicv3_redist_update_lpi_only(GICv3CPUState *cs); /** + * gicv3_redist_mov_lpi: + * @src: source redistributor + * @dest: destination redistributor + * @irq: LPI to update + * + * Move the pending state of the specified LPI from @src to @dest, + * as required by the ITS MOVI command. + */ +void gicv3_redist_mov_lpi(GICv3CPUState *src, GICv3CPUState *dest, int irq); +/** * gicv3_redist_movall_lpis: * @src: source redistributor * @dest: destination redistributor |