ICV_PPI_HMR<n>_EL1 | Jon's Arm Reference

This register is present only when FEAT_GCIE is implemented, EL2 is implemented, and FEAT_AA64 is implemented. Otherwise, direct accesses to ICV_PPI_HMR<n>_EL1 are UNDEFINED.

Attributes

Field descriptions

HM<x>, bit [x], for x = 63 to 0:

PPI <(n * 64) + x> Handling mode.

HM<x>	Meaning
0b0	Edge
0b1	Level

Accessing this field has the following behavior:

When !IsPPIImplemented((n * 64) + x), access to this field is RAZ/WI.
Otherwise, access to this field is RO.

Access Instructions

This register is Read-only.

Accesses to this register use the following encodings in the System register encoding space:

MRS <Xt>, ICC_PPI_HMR<n>_EL1 ; Where n = 0-1

(op0 = 0b11, op1 = 0b000, CRn = 0b1100, CRm = 0b1010, op2 = 0b00:n[0])

let n:integer = UInt(op2[0]); if !(IsFeatureImplemented(FEAT_GCIE) && IsFeatureImplemented(FEAT_AA64)) then Undefined(); elsif PSTATE.EL == EL0 then Undefined(); elsif PSTATE.EL == EL1 then if EL2Enabled() && HCR_EL2().IMO == '1' && IsFeatureImplemented(FEAT_GCIE_LEGACY) && ICH_VCTLR_EL2().V3 == '1' then Undefined(); elsif EL2Enabled() && ICH_HFGRTR_EL2().ICC_PPI_HMRn_EL1 == '0' then AArch64_SystemAccessTrap(EL2, 0x18); elsif EL2Enabled() && HCR_EL2().IMO == '1' then X{64}(t) = ICV_PPI_HMR_EL1(n); else X{64}(t) = ICC_PPI_HMR_EL1(n); end; elsif PSTATE.EL == EL2 then X{64}(t) = ICC_PPI_HMR_EL1(n); elsif PSTATE.EL == EL3 then X{64}(t) = ICC_PPI_HMR_EL1(n); end;

63	62	61	60	59	58	57	56	55	54	53	52	51	50	49	48	47	46	45	44	43	42	41	40	39	38	37	36	35	34	33	32
31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
HM63	HM62	HM61	HM60	HM59	HM58	HM57	HM56	HM55	HM54	HM53	HM52	HM51	HM50	HM49	HM48	HM47	HM46	HM45	HM44	HM43	HM42	HM41	HM40	HM39	HM38	HM37	HM36	HM35	HM34	HM33	HM32
HM31	HM30	HM29	HM28	HM27	HM26	HM25	HM24	HM23	HM22	HM21	HM20	HM19	HM18	HM17	HM16	HM15	HM14	HM13	HM12	HM11	HM10	HM9	HM8	HM7	HM6	HM5	HM4	HM3	HM2	HM1	HM0

ICV_PPI_HMR<n>_EL1, n = 0 - 1

Configuration

Attributes

Field descriptions

HM<x>, bit [x], for x = 63 to 0:

Access Instructions